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1.81ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG485136756

Shape and cutting style on the report: Round brilliant

Certificate IGI LG485136756

Diamond specifications and retailer prices

From $1,774 NZD
$1,000 USD
As of October 30, 2026
Save $6,946 NZD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,721 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG485136756 or 485136756. Listed at 10 retailers as of October 29, 2026, with prices from $1,774 to $8,721, a $6,946 spread on the same certified stone. MOH London lists it at $8,721. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485136756
Dimensions7.72 × 7.75 × 4.87 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
7.72 mm7.75 mm1.81 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485136756
Side View
Table 56.5%Crown 35.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.9%

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: Oct 30
Current: $8,721 NZD|Low: $1,774 NZD|High: $8,790 NZD|Avg: $4,435 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
October 30, 2026
Retailer 2$1,774 NZD
Retailer 4$2,619 NZD
Retailer 7$2,848 NZD
Retailer 9$2,935 NZD
Retailer 5$3,038 NZD
Retailer 11$4,139 NZD
Retailer 6$4,789 NZD
Retailer 10$5,513 NZD
Retailer 8$5,692 NZD
Retailer 3$6,799 NZD
MOH London$8,721 NZD

17 data points across 11 retailers

10 retailers$1,774 NZD to $8,721 NZD

A
Cheapest Retailer
-
$1,774 NZD
$1,000 USD
B+
Retailer 2
-
$2,619 NZD
$1,476 USD
View
B+
Retailer 3
-
$2,848 NZD
$1,605 USD
View
B+
Retailer 4
-
$2,935 NZD
$1,654 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,038 NZD
$1,712 USD
View
Retailer 6
-
$3,038 NZD
$1,712 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$4,789 NZD
$2,699 USD
View
B
Retailer 8
-
$5,513 NZD
$3,107 USD
View
B
Retailer 9
-
$5,692 NZD
$3,208 USD
View
Most Expensive
B
MOH London
LG485136756 · Oct 29
$8,721 NZD
£3,870 GBP
View
9 more retailers have this diamond
Prices start from $1,774 NZDSave up to $6,946 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
$1,774 NZD