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1.81ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG478124679

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478124679

Diamond specifications and retailer prices

From $1,810 NZD
$1,020 USD
As of October 30, 2026
Save $6,559 NZD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,369 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478124679 or 478124679. Listed at 11 retailers as of October 29, 2026, with prices from $1,810 to $8,369, a $6,559 spread on the same certified stone. MOH London lists it at $8,369. 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

1.81
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478124679
Dimensions7.77 × 7.80 × 4.80 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
7.77 mm7.80 mm1.81 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478124679
Side View
Table 61.0%Crown 36.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.7%

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: Oct 30
Current: $8,369 NZD|Low: $1,787 NZD|High: $8,425 NZD|Avg: $3,782 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 2$1,810 NZD
Retailer 7$2,234 NZD
Retailer 11$2,431 NZD
Retailer 10$2,502 NZD
Retailer 8$2,590 NZD
Retailer 13$2,590 NZD
Retailer 6$3,015 NZD
Retailer 4$3,609 NZD
Retailer 9$4,104 NZD
Retailer 3$4,830 NZD
Retailer 12$4,856 NZD
Retailer 5$5,795 NZD
MOH London$8,369 NZD

23 data points across 13 retailers

11 retailers$1,810 NZD to $8,369 NZD

A
Cheapest Retailer
-
$1,810 NZD
$1,020 USD
B+
Retailer 2
-
$2,234 NZD
$1,259 USD
View
B+
Retailer 3
-
$2,431 NZD
$1,370 USD
View
B+
Retailer 4
-
$2,502 NZD
$1,410 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,590 NZD
$1,460 USD
View
Retailer 6
-
$2,590 NZD
$1,460 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$3,015 NZD
£1,338 GBP
View
B
Retailer 8
-
$4,104 NZD
$2,313 USD
View
B
Retailer 9
-
$4,830 NZD
$2,722 USD
View
B
Retailer 10
-
$4,856 NZD
$2,737 USD
View
Most Expensive
B
MOH London
LG478124679 · Oct 29
$8,369 NZD
£3,714 GBP
View
10 more retailers have this diamond
Prices start from $1,810 NZDSave up to $6,559 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
1.81ct Round
$1,810 NZD