CaratHunter
Plans
Round|Lab Grown|IGI

1.64ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG625480546

Shape and cutting style on the report: Round brilliant

Certificate IGI LG625480546

Diamond specifications and retailer prices

From $297 SGD
$232 USD
As of October 30, 2026
Save $2,248 SGD (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,545 SGD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG625480546 or 625480546. Listed at 13 retailers as of October 30, 2026, with prices from $297 to $2,545, a $2,248 spread on the same certified stone. Do Amore Diamonds lists it at $2,545. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625480546
Dimensions7.49 × 7.46 × 4.72 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
7.49 mm7.46 mm1.64 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625480546
Side View
Table 58.0%Crown 36.1°Girdle: MediumPavilion 41.3°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,545 SGD|Low: $242 SGD|High: $2,545 SGD|Avg: $954 SGD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 7$297 SGD
Retailer 9$487 SGD
Retailer 6$568 SGD
Retailer 8$662 SGD
Retailer 2$669 SGD
Retailer 5$934 SGD
Retailer 4$1,059 SGD
Retailer 3$1,452 SGD
Do Amore Diamonds$2,545 SGD

40 data points across 9 retailers

13 retailers$297 SGD to $2,545 SGD

A
Cheapest Retailer
-
$297 SGD
$232 USD
Final sale: no returns
Retailer 2
-
$329 SGD
$257 USD
View
Price last confirmed 31 days ago
A
Retailer 3
-
$329 SGD
$257 USD
View
A
Retailer 4
-
$487 SGD
$381 USD
View
B+
Retailer 5
-
$568 SGD
$444 USD
View
B+
Retailer 6
-
$662 SGD
$518 USD
View
A
Retailer 7
-
$669 SGD
£412 GBP
View
Retailer 8
-
$934 SGD
$730 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$1,059 SGD
$828 USD
View
Retailer 10
-
$1,165 SGD
$911 USD
View
Price last confirmed 26 days ago
B
Retailer 11
-
$1,165 SGD
$911 USD
View
B
Retailer 12
-
$1,452 SGD
£894 GBP
View
Most Expensive
B
Do Amore Diamonds
27-F85E13E20 · Nov 2
$2,545 SGD
$1,990 USD
View
12 more retailers have this diamond
Prices start from $297 SGDSave up to $2,248 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
$297 SGD