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Round|Lab Grown|IGI

3.18ct J VS2 Round Lab Grown Diamond

ID • J/VS2 • IGI LG508124138

Shape and cutting style on the report: Round brilliant

Certificate IGI LG508124138

Diamond specifications and retailer prices

From $929 SGD
As of November 5, 2026
Save $2,783 SGD (75%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,235 SGD at MOH London · As of October 26, 2026
View at MOH London

About this 3.18ct lab-grown round diamond

This 3.18ct lab-grown round sits in the three to five carat band, graded J colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG508124138 or 508124138. Listed at 15 retailers as of November 4, 2026, with a 300% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.18
Carat
J
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508124138
Dimensions9.43 × 9.39 × 5.80 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
9.43 mm9.39 mm3.18 ctJ / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508124138
Side View
Table 58.5%Crown 35.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $4,235 SGD|Low: $929 SGD|High: $4,286 SGD|Avg: $2,235 SGD|+0.2%
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 9$929 SGD
Retailer 11$1,038 SGD
Retailer 3$1,242 SGD
Retailer 6$1,303 SGD
Retailer 10$1,468 SGD
Retailer 8$1,745 SGD
Retailer 12$1,984 SGD
Retailer 4$2,016 SGD
Retailer 5$2,162 SGD
Retailer 2$2,171 SGD
Retailer 7$2,653 SGD
Retailer 13$3,712 SGD
MOH London$4,235 SGD

18 data points across 13 retailers

15 retailers$929 SGD to $3,712 SGD

A
Cheapest Retailer
-
$929 SGD
A
Retailer 2
-
$1,010 SGD
View
A
Retailer 3
-
$1,038 SGD
View
Final sale: no returns
A
Retailer 4
-
$1,077 SGD
View
Retailer 5
-
$1,077 SGD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$1,242 SGD
View
A
Retailer 7
-
$1,303 SGD
View
B+
Retailer 8
-
$1,468 SGD
View
B+
Retailer 9
-
$1,745 SGD
View
B
Retailer 10
-
$1,984 SGD
View
B+
Retailer 11
-
$2,171 SGD
View
B
Retailer 12
-
$2,653 SGD
View
B
Retailer 13
-
$3,028 SGD
View
B
Retailer 14
-
$3,712 SGD
View
Most Expensive
MOH London
LG508124138 · Oct 26
$4,235 SGD
£2,611 GBP
View
Price last confirmed 10 days ago
14 more retailers have this diamond
Prices start from $929 SGDSave up to $2,783 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
3.18ct Round
$929 SGD