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Round|Lab Grown|IGI

2.51ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG487107062

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487107062

Diamond specifications and retailer prices

From $3,124 AUD
As of November 5, 2026
Save $6,683 AUD (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,808 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487107062 or 487107062. Listed at 9 retailers as of November 5, 2026, with prices from $3,124 to $9,808, a $6,683 spread on the same certified stone. MOH London lists it at $9,808. 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
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487107062
Dimensions8.69 × 8.71 × 5.36 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
8.69 mm8.71 mm2.51 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487107062
Side View
Table 59.5%Crown 34.9°GirdlePavilion 41°Culet: NoneDepth 61.6%

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 5
Current: $9,808 AUD|Low: $3,124 AUD|High: $9,965 AUD|Avg: $5,600 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4$3,124 AUD
Retailer 5$3,624 AUD
Retailer 2$3,857 AUD
Retailer 7$4,631 AUD
Retailer 6$5,663 AUD
Retailer 3$5,681 AUD
MOH London$9,808 AUD

19 data points across 7 retailers

9 retailers$3,124 AUD to $9,808 AUD

A
Cheapest Retailer
-
$3,124 AUD
A
Retailer 2
-
$3,400 AUD
View
Retailer 3
-
$3,624 AUD
View
Price last confirmed 26 days ago
B+
Retailer 4
-
$3,624 AUD
View
B+
Retailer 5
-
$3,857 AUD
View
B
Retailer 6
-
$4,983 AUD
View
B
Retailer 7
-
$5,663 AUD
View
B
Retailer 8
-
$5,681 AUD
View
Most Expensive
B
MOH London
LG487107062 · Nov 5
$9,808 AUD
£5,406 GBP
View
8 more retailers have this diamond
Prices start from $3,124 AUDSave up to $6,683 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
$3,124 AUD