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Radiant|Lab Grown|IGI

1.64ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG631413894

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG631413894

Diamond specifications and retailer prices

From $257 SGD
$201 USD
As of November 2, 2026
Save $1,789 SGD (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,046 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.64ct lab-grown radiant diamond

This 1.64ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG631413894 or 631413894. Listed at 15 retailers as of October 31, 2026, with prices from $257 to $2,046, a $1,789 spread on the same certified stone. Brilliant Earth lists it at $2,046. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631413894
Dimensions8.49 × 5.94 × 3.94 mm
L/W Ratio1.43
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
8.49 mm5.94 mm1.64 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631413894
Side View
Table 62.0%Crown 32.2°Girdle: MediumPavilion 34.6°Culet: NoneDepth 66.3%

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 2
Current: $2,046 SGD|Low: $247 SGD|High: $2,212 SGD|Avg: $837 SGD|-7.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7$257 SGD
Retailer 10$288 SGD
Retailer 8$318 SGD
Retailer 2$373 SGD
Retailer 5$521 SGD
Retailer 3$585 SGD
Retailer 6$1,037 SGD
Retailer 4$1,491 SGD
Retailer 9$1,531 SGD
Brilliant Earth$2,046 SGD

44 data points across 10 retailers

15 retailers$257 SGD to $2,046 SGD

A
Cheapest Retailer
-
$257 SGD
$201 USD
A
Retailer 2
-
$288 SGD
$225 USD
View
Final sale: no returns
A
Retailer 3
-
$298 SGD
$233 USD
View
A
Retailer 4
-
$318 SGD
$249 USD
View
A
Retailer 5
-
$360 SGD
HK$2,200 HKD
View
A
Retailer 6
-
$373 SGD
£229 GBP
View
A
Retailer 7
-
$521 SGD
€388 EUR
View
A
Retailer 8
-
$585 SGD
£360 GBP
View
A
Retailer 9
-
$760 SGD
$594 USD
View
Retailer 10
-
$1,037 SGD
$811 USD
View
Price last confirmed 18 days ago
B+
Retailer 11
-
$1,041 SGD
View
B+
Retailer 12
-
$1,093 SGD
$855 USD
View
B+
Retailer 13
-
$1,491 SGD
£918 GBP
View
B
Retailer 14
-
$1,531 SGD
$1,197 USD
View
Most Expensive
B
Brilliant Earth
21390609A · Oct 31
$2,046 SGD
$1,600 USD
View
14 more retailers have this diamond
Prices start from $257 SGDSave up to $1,789 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 Radiant
$257 SGD