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Round|Lab Grown|IGI

1.28ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG819612892

Shape and cutting style on the report: Round brilliant

Certificate IGI LG819612892

Diamond specifications and retailer prices

From $221 SGD
As of November 5, 2026
Save $1,056 SGD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,277 SGD at MOH London · As of November 5, 2026
View at MOH London

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG819612892 or 819612892. Listed at 14 retailers as of November 5, 2026, with prices from $221 to $1,277, a $1,056 spread on the same certified stone. MOH London lists it at $1,277. 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

1.28
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819612892
Dimensions6.99 × 6.97 × 4.27 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.99 mm6.97 mm1.28 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819612892
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.2%

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: $1,277 SGD|Low: $212 SGD|High: $1,296 SGD|Avg: $574 SGD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8$221 SGD
Retailer 10$257 SGD
Retailer 3$273 SGD
Retailer 9$273 SGD
Retailer 5$483 SGD
Retailer 11$488 SGD
Retailer 6$562 SGD
Retailer 2$605 SGD
Retailer 4$691 SGD
Retailer 12$880 SGD
Retailer 7$930 SGD
MOH London$1,277 SGD

46 data points across 12 retailers

14 retailers$221 SGD to $1,277 SGD

A
Cheapest Retailer
-
$221 SGD
A
Retailer 2
-
$257 SGD
View
Retailer 3
-
$273 SGD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$273 SGD
View
A
Retailer 5
-
$483 SGD
View
B+
Retailer 6
-
$488 SGD
View
A
Retailer 7
-
$562 SGD
View
B+
Retailer 8
-
$581 SGD
View
A
Retailer 9
-
$605 SGD
View
B+
Retailer 10
-
$691 SGD
View
B
Retailer 11
-
$880 SGD
View
B+
Retailer 12
-
$930 SGD
View
B+
Retailer 13
-
$949 SGD
View
Most Expensive
B
MOH London
LG819612892 · Nov 5
$1,277 SGD
£787 GBP
View
13 more retailers have this diamond
Prices start from $221 SGDSave up to $1,056 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
1.28ct Round
$221 SGD