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Oval|Lab Grown|IGI

1.51ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG685590864

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG685590864

Diamond specifications and retailer prices

From €243 EUR
$273 USD
As of November 1, 2026
Save €1,923 EUR (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €2,167 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685590864 or 685590864. Listed at 16 retailers as of October 31, 2026, with prices from €243 to €2,167, a €1,923 spread on the same certified stone. Do Amore Diamonds lists it at €2,167. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685590864
Dimensions9.18 × 6.36 × 3.96 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.18 mm6.36 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685590864
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €2,167 EUR|Low: €234 EUR|High: €2,167 EUR|Avg: €700 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 10€243 EUR
Retailer 13€283 EUR
Retailer 4€302 EUR
Retailer 11€302 EUR
Retailer 2€371 EUR
Retailer 3€535 EUR
Retailer 6€587 EUR
Retailer 8€613 EUR
Retailer 5€711 EUR
Retailer 9€928 EUR
Retailer 12€1,073 EUR
Retailer 7€1,344 EUR
Do Amore Diamonds€2,167 EUR

42 data points across 13 retailers

16 retailers€243 EUR to €2,167 EUR

A
Cheapest Retailer
-
€243 EUR
$273 USD
A
Retailer 2
-
€283 EUR
$317 USD
View
A
Retailer 3
-
€302 EUR
$339 USD
View
Retailer 4
-
€302 EUR
$339 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€356 EUR
$399 USD
View
A
Retailer 6
-
€371 EUR
£328 GBP
View
B+
Retailer 7
-
€403 EUR
$452 USD
View
B+
Retailer 8
-
€441 EUR
$495 USD
View
B+
Retailer 9
-
€535 EUR
$600 USD
View
B+
Retailer 10
-
€587 EUR
£519 GBP
View
B+
Retailer 11
-
€613 EUR
A$1,058 AUD
View
B+
Retailer 12
-
€711 EUR
$798 USD
View
B
Retailer 13
-
€928 EUR
$1,041 USD
View
B
Retailer 14
-
€1,073 EUR
$1,203 USD
View
B
Retailer 15
-
€1,344 EUR
£1,187 GBP
View
Most Expensive
B
Do Amore Diamonds
27-396100D34 · Oct 31
€2,167 EUR
$2,430 USD
View
15 more retailers have this diamond
Prices start from €243 EURSave up to €1,923 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.

A
1.51ct Oval
€243 EUR