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2.56ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG497172472

Shape and cutting style on the report: Round brilliant

Certificate IGI LG497172472

Diamond specifications and retailer prices

From $3,967 NZD
As of November 5, 2026
Save $8,486 NZD (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $12,453 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 2.56ct lab-grown round diamond

This 2.56ct 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 LG497172472 or 497172472. Listed at 10 retailers as of November 5, 2026, with prices from $3,967 to $12,453, a $8,486 spread on the same certified stone. MOH London lists it at $12,453. 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

2.56
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497172472
Dimensions8.78 × 8.85 × 5.30 mm
L/W Ratio1.01
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 mm8.85 mm2.56 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497172472
Side View
Table 59.0%Crown 33.9°GirdlePavilion 40.2°Culet: NoneDepth 60.1%

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: $12,453 NZD|Low: $3,809 NZD|High: $12,654 NZD|Avg: $6,479 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$3,967 NZD
Retailer 2$4,465 NZD
Retailer 6$4,602 NZD
Retailer 8$4,602 NZD
Retailer 3$4,892 NZD
Retailer 9$5,872 NZD
Retailer 7$7,185 NZD
Retailer 4$7,213 NZD
MOH London$12,453 NZD

41 data points across 9 retailers

10 retailers$3,967 NZD to $12,453 NZD

A
Cheapest Retailer
-
$3,967 NZD
A
Retailer 2
-
$4,317 NZD
View
A
Retailer 3
-
$4,465 NZD
View
Retailer 4
-
$4,602 NZD
View
Price last confirmed 26 days ago
B+
Retailer 5
-
$4,602 NZD
View
B+
Retailer 6
-
$4,892 NZD
View
B
Retailer 7
-
$6,326 NZD
View
B
Retailer 8
-
$7,185 NZD
View
B
Retailer 9
-
$7,213 NZD
View
Most Expensive
B
MOH London
LG497172472 · Nov 5
$12,453 NZD
£5,512 GBP
View
9 more retailers have this diamond
Prices start from $3,967 NZDSave up to $8,486 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
2.56ct Round
$3,967 NZD