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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 €244 EUR
$273 USD
As of October 29, 2026
Save €1,931 EUR (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €2,175 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 29, 2026, with prices from €244 to €2,175, a €1,931 spread on the same certified stone. Do Amore Diamonds lists it at €2,175. 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
Colour
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: Oct 29
Current: €2,175 EUR|Low: €235 EUR|High: €2,175 EUR|Avg: €702 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€244 EUR
Retailer 13€284 EUR
Retailer 4€303 EUR
Retailer 11€303 EUR
Retailer 6€374 EUR
Retailer 3€537 EUR
Retailer 2€590 EUR
Retailer 8€616 EUR
Retailer 5€714 EUR
Retailer 9€932 EUR
Retailer 12€1,077 EUR
Retailer 7€1,349 EUR
Do Amore Diamonds€2,175 EUR

43 data points across 13 retailers

16 retailers€244 EUR to €2,175 EUR

A
Cheapest Retailer
-
€244 EUR
$273 USD
A
Retailer 2
-
€284 EUR
$317 USD
View
A
Retailer 3
-
€303 EUR
$339 USD
View
A
Retailer 4
-
€303 EUR
$339 USD
View
A
Retailer 5
-
€357 EUR
$399 USD
View
A
Retailer 6
-
€374 EUR
£329 GBP
View
B+
Retailer 7
-
€405 EUR
$452 USD
View
B+
Retailer 8
-
€443 EUR
$495 USD
View
B+
Retailer 9
-
€537 EUR
$600 USD
View
B+
Retailer 10
-
€590 EUR
£519 GBP
View
B+
Retailer 11
-
€616 EUR
A$1,058 AUD
View
B+
Retailer 12
-
€714 EUR
$798 USD
View
B
Retailer 13
-
€932 EUR
$1,041 USD
View
B
Retailer 14
-
€1,077 EUR
$1,203 USD
View
B
Retailer 15
-
€1,349 EUR
£1,187 GBP
View
Most Expensive
B
Do Amore Diamonds
27-396100D34 · Oct 31
€2,175 EUR
$2,430 USD
View
15 more retailers have this diamond
Prices start from €244 EURSave up to €1,931 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
€244 EUR