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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 $1,186 NZD
A$1,028 AUD
As of October 27, 2026
15 retailers carry this diamond
Most expensive: $2,670 NZD 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
Colour
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: $2,670 NZD|Low: $513 NZD|High: $2,688 NZD|Avg: $1,094 NZD|+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$534 NZD
Retailer 6$596 NZD
Retailer 4$619 NZD
Retailer 7$662 NZD
Retailer 14$662 NZD
Retailer 8$816 NZD
Retailer 2$976 NZD
Retailer 15$1,084 NZD
Retailer 10$1,094 NZD
Retailer 9$1,163 NZD
Retailer 11$1,186 NZD
Retailer 5$1,194 NZD
Retailer 12$2,035 NZD
Retailer 3$2,131 NZD
MOH London$2,670 NZD

36 data points across 15 retailers

15 retailers

Retailer 1
-
$534 NZD
$301 USD
Price last confirmed 12 days ago
Retailer 2
-
$619 NZD
$349 USD
View
Price last confirmed 17 days ago
Retailer 3
-
$662 NZD
$373 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$662 NZD
$373 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$816 NZD
£362 GBP
View
Price last confirmed 11 days ago
Retailer 6
-
$976 NZD
$550 USD
View
Price last confirmed 10 days ago
Retailer 7
-
$1,084 NZD
$611 USD
View
Price last confirmed 13 days ago
Retailer 8
-
$1,163 NZD
£516 GBP
View
Price last confirmed 11 days ago
A
Retailer 9
-
$1,186 NZD
A$1,028 AUD
View
Retailer 10
-
$1,194 NZD
$673 USD
View
Price last confirmed 12 days ago
Retailer 11
-
$1,666 NZD
$939 USD
View
Price last confirmed 11 days ago
Retailer 12
-
$2,035 NZD
$1,147 USD
View
Price last confirmed 12 days ago
Retailer 13
-
$2,131 NZD
$1,201 USD
View
Price last confirmed 13 days ago
Retailer 14
-
$2,214 NZD
$1,248 USD
View
Price last confirmed 11 days ago
Most Expensive
MOH London
LG706508588 · Oct 19
$2,670 NZD
£1,185 GBP
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from $1,186 NZD

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
$1,186 NZD