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1.80ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG500151236

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500151236

Diamond specifications and retailer prices

From $1,601 SGD
$1,252 USD
As of October 29, 2026
Save $4,397 SGD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,997 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.8ct lab-grown round diamond

This 1.8ct 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 LG500151236 or 500151236. Listed at 10 retailers as of October 29, 2026, with prices from $1,601 to $5,997, a $4,397 spread on the same certified stone. MOH London lists it at $5,997. 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

1.80
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500151236
Dimensions7.74 × 7.66 × 4.85 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
7.74 mm7.66 mm1.80 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500151236
Side View
Table 55.0%Crown 36.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.0%

Caratlytics Score

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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 29
Current: $5,997 SGD|Low: $1,281 SGD|High: $6,046 SGD|Avg: $3,156 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 18, 2026
Retailer 2$1,636 SGD
Retailer 4$1,792 SGD
Retailer 6$2,587 SGD
Retailer 7$2,701 SGD
Retailer 3$2,943 SGD
Retailer 5$3,461 SGD
Retailer 8$4,152 SGD
MOH London$5,997 SGD

9 data points across 8 retailers

10 retailers$1,601 SGD to $5,997 SGD

A
Cheapest Retailer
-
$1,601 SGD
$1,252 USD
A
Retailer 2
-
$1,636 SGD
$1,280 USD
View
A
Retailer 3
-
$1,741 SGD
$1,362 USD
View
A
Retailer 4
-
$1,792 SGD
$1,402 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,856 SGD
$1,452 USD
View
Retailer 6
-
$1,856 SGD
$1,452 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$2,943 SGD
$2,302 USD
View
B
Retailer 8
-
$3,461 SGD
$2,707 USD
View
B
Retailer 9
-
$3,481 SGD
$2,723 USD
View
Most Expensive
B
MOH London
LG500151236 · Oct 29
$5,997 SGD
£3,694 GBP
View
9 more retailers have this diamond
Prices start from $1,601 SGDSave up to $4,397 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
1.80ct Round
$1,601 SGD