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Since 1986 Custom Design your dream ring

Diamond Jewelry

Natural and lab-grown diamond jewelry in 14K and 18K gold — studs, tennis bracelets, pendants, hoops, and more from Gabriel & Co., Tacori, Decoage, and Simon G. at Jewelry Couture in Ventura, CA.

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LR2507 WHITE 18K SEMI

Simon G. LR2507 18K Gold Emerald Cut Diamond Engagement Ring

From $2,710.00 USD

Simon G. LR2800 18K White Gold Round Graduated Diamond Engagement Ring

From $10,500.00 USD

Simon G. MR1394 18K Gold Round Criss-Cross Diamond Engagement Ring and Wedding Band Set

From $3,530.00 USD
MR1503 WHITE 18K SEMI

Simon G. MR1503 18K Gold Round Vintage Halo Diamond Engagement Ring

From $1,940.00 USD

Simon G. MR2100 18K Gold Round Vintage Floral Diamond Engagement Ring

From $2,140.00 USD
MR2141_WHITE_18K_SEMI

Simon G. MR2141 18K White Gold Round Princess and Round Diamond Engagement Ring

From $9,840.00 USD
MR2248 WHITE 18K SEMI

Simon G. MR2248 18K Gold Round Vintage Split Shank Diamond Engagement Ring

From $5,990.00 USD
MR2358 WHITE 18K SEMI

Simon G. MR2358 18K White Gold Round Baguette Diamond Engagement Ring with Milgrain

From $8,910.00 USD
MR2384-A WHITE 18K SEMI

Simon G. MR2384 18K White Gold Round Geometric Halo Diamond or Sapphire Engagement Ring

From $5,880.00 USD
MR2477 WHITE 18K SEMI

Simon G. MR2477 18K Gold Round Pave Double Halo Diamond Engagement Ring

From $5,370.00 USD
MR2514 WHITE 18K SEMI

Simon G. MR2514 18K Gold Round Criss-Cross Diamond Engagement Ring

From $3,260.00 USD
MR2624 WHITE 18K SEMI

Simon G. MR2624 18K Gold Round Halo Diamond Engagement Ring

From $6,670.00 USD
MR2646 WHITE 18K SEMI

Simon G. MR2646 18K White Gold Round Diamond Engagement Ring with Rose Gold Accents

From $2,400.00 USD
MR2711_WHITE_18K_SEMI

Simon G. MR2711 18K White Gold Round Simon-Set Princess and Baguette Diamond Engagement Ring

From $19,670.00 USD
MR2845 WHITE 18K SEMI

Simon G. MR2845 18K White Gold Round Diamond Engagement Ring with Tapered Shank

From $2,090.00 USD
MR2878 WHITE 18K SEMI

Simon G. MR2878 18K White Gold Oval Halo Diamond Engagement Ring

From $4,980.00 USD

Simon G. MR2884 18K White Gold Oval Double Halo Diamond Engagement Ring

From $3,940.00 USD
MR4089_WHITE_18K_SEMI

Simon G. MR4089 18K Gold Round Flower Halo Diamond Engagement Ring

From $6,960.00 USD
NR109 WHITE 18K SEMI

Simon G. NR109 18K White Gold Round and Princess Diamond Halo Engagement Ring

From $8,560.00 USD

Simon G. TR160 18K White Gold Round Intricate Halo Diamond Engagement Ring

$5,020.00 USD
TR446 WHITE 18K SEMI

Simon G. TR446 18K Gold Round Three Stone Halo Diamond Engagement Ring

From $6,870.00 USD
TR549 WHITE 18K SEMI

Simon G. TR549 18K Gold Round Vintage Halo Diamond Engagement Ring

From $3,110.00 USD

Simon G. TR629 18K White Gold Round Vintage Halo Diamond Engagement Ring

From $3,680.00 USD
TR701 WHITE 18K SEMI

Simon G. TR701 18K White Gold Round Diamond Engagement Ring

From $3,060.00 USD
MR1686 WHITE 18K SET

Simon G. MR1686 18K Gold Round Diamond Engagement Ring and Wedding Band Set

From $4,730.00 USD
MR2247-A WHITE 18K SEMI

Simon G. MR2247-A 18K White Gold Round Three Stone Halo Diamond and Sapphire Engagement Ring

From $5,310.00 USD
LR2835 WHITE 18K SEMI

Simon G. LR2835 18K White Gold Round Hidden Halo Diamond Engagement Ring

From $2,840.00 USD
MR1725 WHITE PLAT X WHITE-ROSE

Simon G. MR1725 Platinum Simon-Set Pink and White Diamond Anniversary Ring

$15,400.00 USD
LR2856 WHITE 18K SEMI

Simon G. LR2856 18K White Gold Oval Cut Classic Halo Diamond Engagement Ring

From $4,980.00 USD

Simon G. MR2403 Men's Scrolling Diamond Wedding Band

From $5,590.00 USD
LG158 WHITE 14K X 2T

Simon G. LG158 Men's Inner Diamond Two-Tone Wedding Band

From $6,960.00 USD
LR2171 WHITE 14K BAND WHITE-BLAC

Simon G. LR2171 Men's Black Diamond Channel Hammered Gold Wedding Band

From $5,860.00 USD
LR2177 WHITE 18K X YELLOW

Simon G. LR2177 Men's Center Diamond Channel Wedding Band

From $5,500.00 USD
MR1498_WHITE_18K_SEMI

Simon G. MR1498 18K Gold Round Criss-Cross Diamond Engagement Ring

$3,920.00 USD
MR2425 WHITE 18K SEMI

Simon G. MR2425 18K White Gold Round Simon-Set Diamond Engagement Ring

From $9,240.00 USD
LE4640 WHITE 18K X 2T

Simon G. LE4640 18K Two Tone Diamond Hoop Earrings

$8,580.00 USD
LG183 WHITE 14K X WHITE-ROSE 1

Simon G. LG183 Men's Two-Row Diamond Wedding Band

From $5,970.00 USD

Simon G. TR738 18K Gold Round Diamond Engagement Ring with Pave Band

From $4,100.00 USD
LR3031 WHITE 18K X

Simon G. LR3031 18K White Gold Cushion Cut Hidden Halo Diamond Engagement Ring

$3,740.00 USD

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