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Oval|Lab Grown|IGI

1.51ct D SI2 Oval Lab Grown Diamond

D/SI2 • IGI LG691580333

Certificate IGI LG691580333

Diamond specifications and retailer prices

From €834 EUR
As of November 6, 2026
Save €304 EUR (27%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €1,137 EUR at Kay Jewelers · As of November 6, 2026
View at Kay Jewelers

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included) and certified by IGI LG691580333 or 691580333. Listed at 3 retailers as of November 6, 2026, with prices from €834 to €1,137, a €304 spread on the same certified stone. Kay Jewelers lists it at €1,137. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG691580333
Dimensions9.34 × 6.46 mm
L/W Ratio1.45
Top View
9.34 mm6.46 mm1.51 ctD / SI2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691580333
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: €1,137 EUR|Low: €834 EUR|High: €1,137 EUR|Avg: €1,079 EUR
Kay Jewelers
Retailer 2
Retailer 3
November 6, 2026
Retailer 2€834 EUR
Kay Jewelers€1,137 EUR
Retailer 3€1,137 EUR

2 data points across 3 retailers

3 retailers€834 EUR to €1,137 EUR

B
Cheapest Retailer
-
€834 EUR
C
Retailer 2
-
€1,137 EUR
View
Most Expensive
C
Kay Jewelers
254642456 · Nov 6
€1,137 EUR
$1,270 USD
View
2 more retailers have this diamond
Prices start from €834 EURSave up to €304 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.51ct Oval
€834 EUR