Oval|Lab Grown|IGI

2.51ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG706508588

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG706508588

Diamond specifications and retailer prices

From $668 USD
A$1,028 AUD
As of October 27, 2026
15 retailers carry this diamond
Most expensive: $1,505 USD at MOH London · As of October 19, 2026
View at MOH London

About this 2.51ct lab-grown oval diamond

This 2.51ct lab-grown oval sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG706508588 or 706508588. Listed at 15 retailers as of October 27, 2026. 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

2.51
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG706508588
Dimensions11.29 × 7.46 × 4.48 mm
L/W Ratio1.51
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.29 mm7.46 mm2.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG706508588
Side View
Table 62.0%Crown 33.3°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 60.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: $1,505 USD|Low: $289 USD|High: $1,515 USD|Avg: $616 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 21, 2026
Retailer 13$301 USD
Retailer 6$336 USD
Retailer 4$349 USD
Retailer 7$373 USD
Retailer 14$373 USD
Retailer 8$460 USD
Retailer 2$550 USD
Retailer 15$611 USD
Retailer 10$616 USD
Retailer 9$655 USD
Retailer 11$668 USD
Retailer 5$673 USD
Retailer 12$1,147 USD
Retailer 3$1,201 USD
MOH London$1,505 USD

37 data points across 15 retailers

15 retailers

Retailer 1
-
$301 USD
Price last confirmed 11 days ago
Retailer 2
-
$349 USD
View
Price last confirmed 15 days ago
Retailer 3
-
$373 USD
View
Price last confirmed 10 days ago
Retailer 4
-
$373 USD
View
Price last confirmed 13 days ago
Retailer 5
-
$460 USD
£362 GBP
View
Price last confirmed 9 days ago
Retailer 6
-
$550 USD
View
Price last confirmed 8 days ago
Retailer 7
-
$611 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$655 USD
£516 GBP
View
Price last confirmed 9 days ago
A
Retailer 9
-
$668 USD
A$1,028 AUD
View
Retailer 10
-
$673 USD
View
Price last confirmed 10 days ago
Retailer 11
-
$939 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$1,147 USD
View
Price last confirmed 10 days ago
Retailer 13
-
$1,201 USD
View
Price last confirmed 11 days ago
Retailer 14
-
$1,248 USD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
LG706508588 · Oct 19
$1,505 USD
£1,185 GBP
View
Price last confirmed 10 days ago
14 more retailers have this diamond
Prices start from $668 USD

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
2.51ct Oval
$668 USD