CaratHunter
Plans
Round|Lab Grown|IGI

2.51ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG496134893

Shape and cutting style on the report: Round brilliant

Certificate IGI LG496134893

Diamond specifications and retailer prices

From $1,986 AUD
As of November 5, 2026
Save $10,509 AUD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $12,494 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496134893 or 496134893. Listed at 10 retailers as of November 5, 2026, with prices from $1,986 to $12,494, a $10,509 spread on the same certified stone. MOH London lists it at $12,494. 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
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496134893
Dimensions8.78 × 8.81 × 5.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.78 mm8.81 mm2.51 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496134893
Side View
Table 59.0%Crown 34.2°GirdlePavilion 40.2°Culet: NoneDepth 59.8%

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: Nov 5
Current: $12,494 AUD|Low: $1,986 AUD|High: $12,696 AUD|Avg: $7,207 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 2$1,986 AUD
Retailer 4$4,261 AUD
Retailer 6$4,771 AUD
Retailer 7$5,963 AUD
Retailer 3$7,101 AUD
Retailer 5$7,681 AUD
Retailer 8$11,062 AUD
MOH London$12,494 AUD

15 data points across 8 retailers

10 retailers$1,986 AUD to $12,494 AUD

A
Cheapest Retailer
-
$1,986 AUD
B+
Retailer 2
-
$4,261 AUD
View
B+
Retailer 3
-
$4,635 AUD
View
B+
Retailer 4
-
$4,771 AUD
View
Final sale: no returns
B+
Retailer 5
-
$4,943 AUD
View
Retailer 6
-
$4,943 AUD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$6,177 AUD
View
B
Retailer 8
-
$7,101 AUD
View
B
Retailer 9
-
$7,681 AUD
View
Most Expensive
B
MOH London
LG496134893 · Nov 5
$12,494 AUD
£6,887 GBP
View
9 more retailers have this diamond
Prices start from $1,986 AUDSave up to $10,509 AUD

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 Round
$1,986 AUD