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Round|Lab Grown|IGI

1.20ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG487108268

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487108268

Diamond specifications and retailer prices

From $1,008 SGD
As of November 5, 2026
Save $3,372 SGD (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,380 SGD at MOH London · As of November 3, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487108268 or 487108268. Listed at 12 retailers as of November 3, 2026, with prices from $1,008 to $4,380, a $3,372 spread on the same certified stone. MOH London lists it at $4,380. 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

1.20
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487108268
Dimensions6.78 × 6.75 × 4.23 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
6.78 mm6.75 mm1.20 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487108268
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: Nov 5
Current: $4,380 SGD|Low: $967 SGD|High: $4,432 SGD|Avg: $1,870 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 6, 2026
Retailer 7$1,008 SGD
Retailer 13$1,096 SGD
Retailer 12$1,128 SGD
Retailer 8$1,137 SGD
Retailer 9$1,169 SGD
Retailer 11$1,169 SGD
Retailer 4$1,392 SGD
Retailer 5$1,814 SGD
Retailer 10$1,887 SGD
Retailer 2$1,935 SGD
Retailer 6$2,778 SGD
Retailer 3$3,285 SGD
MOH London$4,380 SGD

43 data points across 13 retailers

12 retailers$1,008 SGD to $4,380 SGD

A
Cheapest Retailer
-
$1,008 SGD
A
Retailer 2
-
$1,096 SGD
View
A
Retailer 3
-
$1,128 SGD
View
Final sale: no returns
A
Retailer 4
-
$1,137 SGD
View
A
Retailer 5
-
$1,169 SGD
View
Retailer 6
-
$1,169 SGD
View
Price last confirmed 25 days ago
A
Retailer 7
-
$1,392 SGD
View
B+
Retailer 8
-
$1,887 SGD
View
B+
Retailer 9
-
$1,935 SGD
View
B
Retailer 10
-
$2,778 SGD
View
B
Retailer 11
-
$3,285 SGD
View
Most Expensive
B
MOH London
LG487108268 · Nov 3
$4,380 SGD
£2,700 GBP
View
11 more retailers have this diamond
Prices start from $1,008 SGDSave up to $3,372 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
1.20ct Round
$1,008 SGD