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Oval|Lab Grown|IGI

2.51ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG447099818

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447099818

Diamond specifications and retailer prices

From $2,543 NZD
As of November 6, 2026
Save $13,035 NZD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $15,578 NZD at MOH London · As of November 5, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099818 or 447099818. Listed at 11 retailers as of November 5, 2026, with prices from $2,543 to $15,578, a $13,035 spread on the same certified stone. MOH London lists it at $15,578. 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
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099818
Dimensions10.55 × 7.60 × 4.81 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
10.55 mm7.60 mm2.51 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099818
Side View
Table 57.0%Crown 36.8°Girdle: STK-THKPavilion 40.8°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
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 6
Current: $15,578 NZD|Low: $2,543 NZD|High: $22,053 NZD|Avg: $9,353 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 2$2,543 NZD
Retailer 4$5,312 NZD
Retailer 7$5,947 NZD
Retailer 5$6,162 NZD
Retailer 8$6,449 NZD
Retailer 9$7,441 NZD
Retailer 3$8,854 NZD
Retailer 6$9,581 NZD
MOH London$15,578 NZD
Retailer 10$22,053 NZD

16 data points across 10 retailers

11 retailers$2,543 NZD to $15,578 NZD

A
Cheapest Retailer
-
$2,543 NZD
B+
Retailer 2
-
$5,312 NZD
View
B+
Retailer 3
-
$5,780 NZD
View
B+
Retailer 4
-
$5,947 NZD
View
Final sale: no returns
B+
Retailer 5
-
$6,162 NZD
View
Retailer 6
-
$6,162 NZD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$6,449 NZD
View
B
Retailer 8
-
$7,701 NZD
View
B
Retailer 9
-
$8,854 NZD
View
B
Retailer 10
-
$9,581 NZD
View
Most Expensive
B
MOH London
LG447099818 · Nov 5
$15,578 NZD
£6,800 GBP
View
10 more retailers have this diamond
Prices start from $2,543 NZDSave up to $13,035 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
$2,543 NZD