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Round|Lab Grown|IGI

1.64ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG395987168

Shape and cutting style on the report: Round brilliant

Certificate IGI LG395987168

Diamond specifications and retailer prices

From $317 SGD
$248 USD
As of November 1, 2026
Save $1,095 SGD (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,413 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.64ct lab-grown round diamond

This 1.64ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG395987168 or 395987168. Listed at 7 retailers as of October 29, 2026, with prices from $317 to $1,413, a $1,095 spread on the same certified stone. MOH London lists it at $1,413. 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

1.64
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG395987168
Dimensions7.78 × 7.74 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.78 mm7.74 mm1.64 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG395987168
Side View
Table 60.5%Crown 32.7°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 58.3%

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 1
Current: $1,413 SGD|Low: $226 SGD|High: $1,422 SGD|Avg: $755 SGD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6$317 SGD
Retailer 3$577 SGD
Retailer 5$598 SGD
Retailer 2$651 SGD
Retailer 7$777 SGD
Retailer 4$972 SGD
MOH London$1,413 SGD

41 data points across 7 retailers

7 retailers$317 SGD to $1,413 SGD

A
Cheapest Retailer
-
$317 SGD
$248 USD
Final sale: no returns
A
Retailer 2
-
$577 SGD
€430 EUR
View
B+
Retailer 3
-
$598 SGD
$468 USD
View
B+
Retailer 4
-
$651 SGD
£401 GBP
View
B+
Retailer 5
-
$777 SGD
$608 USD
View
Retailer 6
-
$972 SGD
$760 USD
View
Price last confirmed 11 days ago
Most Expensive
B
MOH London
LG395987168 · Oct 29
$1,413 SGD
£870 GBP
View
6 more retailers have this diamond
Prices start from $317 SGDSave up to $1,095 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
1.64ct Round
$317 SGD