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Round|Lab Grown|IGI

1.05ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG818686964

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686964

Diamond specifications and retailer prices

From $178 SGD
As of November 5, 2026
Save $849 SGD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,027 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818686964 or 818686964. Listed at 13 retailers as of November 4, 2026, with prices from $178 to $1,027, a $849 spread on the same certified stone. MOH London lists it at $1,027. 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

1.05
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686964
Dimensions6.53 × 6.58 × 3.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.53 mm6.58 mm1.05 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686964
Side View
Table 57.0%Crown 34.9°Girdle: MediumPavilion 40.3°Culet: NoneDepth 60.6%

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: Nov 5
Current: $1,027 SGD|Low: $178 SGD|High: $1,088 SGD|Avg: $529 SGD|-4.7%
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 9$178 SGD
Retailer 8$206 SGD
Retailer 4$220 SGD
Retailer 5$368 SGD
Retailer 2$391 SGD
Retailer 10$407 SGD
Retailer 11$411 SGD
Retailer 6$524 SGD
Retailer 7$558 SGD
Retailer 3$708 SGD
Retailer 12$778 SGD
MOH London$1,027 SGD

45 data points across 12 retailers

13 retailers$178 SGD to $1,027 SGD

A
Cheapest Retailer
-
$178 SGD
A
Retailer 2
-
$206 SGD
View
A
Retailer 3
-
$220 SGD
View
Retailer 4
-
$230 SGD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$368 SGD
View
A
Retailer 6
-
$391 SGD
View
A
Retailer 7
-
$407 SGD
View
A
Retailer 8
-
$411 SGD
View
B+
Retailer 9
-
$524 SGD
View
B+
Retailer 10
-
$558 SGD
View
B
Retailer 11
-
$708 SGD
View
B
Retailer 12
-
$778 SGD
View
Most Expensive
B
MOH London
LG818686964 · Nov 4
$1,027 SGD
£633 GBP
View
12 more retailers have this diamond
Prices start from $178 SGDSave up to $849 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
1.05ct Round
$178 SGD