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Round|Lab Grown|IGI

2.50ct K SI2 Round Lab Grown Diamond

ID • K/SI2 • IGI LG478124689

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478124689

Diamond specifications and retailer prices

From $7,059 NZD
As of November 5, 2026
Save $5,627 NZD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $17,493 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 2.5ct lab-grown round diamond

This 2.5ct lab-grown round sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478124689 or 478124689. Listed at 8 retailers as of November 4, 2026, with a 80% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.50
Carat
K
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478124689
Dimensions8.65 × 8.71 × 5.31 mm
L/W Ratio1.01
Girdle conditionFaceted
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
8.65 mm8.71 mm2.50 ctK / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478124689
Side View
Table 59.5%Crown 34.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $17,493 NZD|Low: $6,776 NZD|High: $18,602 NZD|Avg: $11,377 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3$7,059 NZD
Retailer 6$7,398 NZD
Retailer 4$8,188 NZD
Retailer 8$9,135 NZD
Retailer 7$10,232 NZD
Retailer 2$10,860 NZD
Retailer 5$12,685 NZD
MOH London$17,493 NZD
Retailer 9$18,602 NZD

16 data points across 9 retailers

8 retailers$7,059 NZD to $12,685 NZD

B+
Cheapest Retailer
-
$7,059 NZD
B
Retailer 2
-
$7,398 NZD
View
B
Retailer 3
-
$8,188 NZD
View
Retailer 4
-
$8,188 NZD
View
Price last confirmed 25 days ago
B
Retailer 5
-
$10,232 NZD
View
B
Retailer 6
-
$10,860 NZD
View
C
Retailer 7
-
$12,685 NZD
View
Most Expensive
MOH London
LG478124689 · Nov 5
$17,493 NZD
£7,743 GBP
View
Price under review
7 more retailers have this diamond
Prices start from $7,059 NZDSave up to $5,627 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.

B+
2.50ct Round
$7,059 NZD