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Round|Lab Grown|IGI

1.83ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG436074660

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436074660

Diamond specifications and retailer prices

From $1,317 SGD
$1,030 USD
As of October 30, 2026
Save $2,221 SGD (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,095 SGD at MOH London · As of October 21, 2026
View at MOH London

About this 1.83ct lab-grown round diamond

This 1.83ct 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 LG436074660 or 436074660. Listed at 10 retailers as of October 27, 2026, with a 169% 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

1.83
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074660
Dimensions7.84 × 7.90 × 4.78 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.84 mm7.90 mm1.83 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074660
Side View
Table 58.0%Crown 31.7°GirdlePavilion 40.9°Culet: NoneDepth 60.7%

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: $6,095 SGD|Low: $1,317 SGD|High: $6,135 SGD|Avg: $3,198 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2$1,317 SGD
Retailer 4$1,822 SGD
Retailer 6$2,625 SGD
Retailer 3$2,988 SGD
Retailer 5$3,517 SGD
Retailer 7$4,220 SGD
MOH London$6,095 SGD

10 data points across 7 retailers

10 retailers$1,317 SGD to $3,537 SGD

A
Cheapest Retailer
-
$1,317 SGD
$1,030 USD
B+
Retailer 2
-
$1,627 SGD
$1,273 USD
View
B+
Retailer 3
-
$1,771 SGD
$1,385 USD
View
B+
Retailer 4
-
$1,822 SGD
$1,425 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,887 SGD
$1,476 USD
View
Retailer 6
-
$1,887 SGD
$1,476 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$2,988 SGD
$2,337 USD
View
B
Retailer 8
-
$3,517 SGD
$2,751 USD
View
B
Retailer 9
-
$3,537 SGD
$2,767 USD
View
Most Expensive
MOH London
LG436074660 · Oct 21
$6,095 SGD
£3,754 GBP
View
Price last confirmed 9 days ago
9 more retailers have this diamond
Prices start from $1,317 SGDSave up to $2,221 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
1.83ct Round
$1,317 SGD