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Radiant|Lab Grown|IGI

1.81ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG523263333

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG523263333

Diamond specifications and retailer prices

From $1,534 SGD
$1,200 USD
As of October 31, 2026
Save $5,757 SGD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,291 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.81ct lab-grown radiant diamond

This 1.81ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG523263333 or 523263333. Listed at 11 retailers as of October 31, 2026, with prices from $1,534 to $7,291, a $5,757 spread on the same certified stone. MOH London lists it at $7,291. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle30.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523263333
Dimensions7.78 × 6.06 × 4.08 mm
L/W Ratio1.28
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
7.78 mm6.06 mm1.81 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523263333
Side View
Table 64.5%Crown 45.6°Girdle: ThickPavilion 30.2°Culet: NoneDepth 67.3%

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 31
Current: $7,291 SGD|Low: $1,534 SGD|High: $7,389 SGD|Avg: $3,701 SGD
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
November 1, 2026
Retailer 7$1,534 SGD
Retailer 6$2,201 SGD
Retailer 11$2,394 SGD
Retailer 12$2,465 SGD
Retailer 8$2,553 SGD
Retailer 5$2,601 SGD
Retailer 13$2,768 SGD
Retailer 3$3,416 SGD
Retailer 9$4,008 SGD
Retailer 2$4,402 SGD
Retailer 10$4,785 SGD
MOH London$7,291 SGD
Retailer 4$7,309 SGD

18 data points across 13 retailers

11 retailers$1,534 SGD to $7,291 SGD

A
Cheapest Retailer
-
$1,534 SGD
$1,200 USD
B+
Retailer 2
-
$2,201 SGD
$1,722 USD
View
B+
Retailer 3
-
$2,394 SGD
$1,873 USD
View
B+
Retailer 4
-
$2,465 SGD
$1,928 USD
View
Final sale: no returns
Retailer 5
-
$2,553 SGD
$1,997 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$2,553 SGD
$1,997 USD
View
B+
Retailer 7
-
$2,768 SGD
$2,165 USD
View
B
Retailer 8
-
$4,008 SGD
$3,135 USD
View
B
Retailer 9
-
$4,402 SGD
$3,443 USD
View
B
Retailer 10
-
$4,785 SGD
$3,743 USD
View
Most Expensive
B
MOH London
LG523263333 · Nov 1
$7,291 SGD
£4,491 GBP
View
10 more retailers have this diamond
Prices start from $1,534 SGDSave up to $5,757 SGD

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 Radiant
$1,534 SGD