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Oval|Lab Grown|IGI

2.51ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG761521617

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG761521617

Diamond specifications and retailer prices

From $1,120 NZD
$631 USD
As of October 30, 2026
Save $1,648 NZD (60%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,767 NZD at MOH London · As of October 29, 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 LG761521617 or 761521617. Listed at 6 retailers as of October 29, 2026, with prices from $1,120 to $2,767, a $1,648 spread on the same certified stone. MOH London lists it at $2,767. 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
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761521617
Dimensions10.94 × 7.66 × 4.71 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.94 mm7.66 mm2.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG761521617
Side View
Table 65.0%Crown 34.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,767 NZD|Low: $1,120 NZD|High: $3,078 NZD|Avg: $1,794 NZD|-8.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 5$1,120 NZD
Retailer 2$1,223 NZD
Retailer 4$1,348 NZD
Retailer 3$1,673 NZD
Retailer 6$2,290 NZD
MOH London$2,767 NZD

38 data points across 6 retailers

6 retailers$1,120 NZD to $2,767 NZD

B+
Cheapest Retailer
-
$1,120 NZD
$631 USD
A
Retailer 2
-
$1,223 NZD
£543 GBP
View
A
Retailer 3
-
$1,348 NZD
$760 USD
View
B+
Retailer 4
-
$1,673 NZD
$943 USD
View
B+
Retailer 5
-
$2,290 NZD
$1,291 USD
View
Most Expensive
B
MOH London
LG761521617 · Oct 29
$2,767 NZD
£1,228 GBP
View
5 more retailers have this diamond
Prices start from $1,120 NZDSave up to $1,648 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
$1,120 NZD