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Marquise|Lab Grown|IGI

1.64ct J SI1 Marquise Lab Grown Diamond

VG • J/SI1 • IGI LG436046504

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436046504

Diamond specifications and retailer prices

From $2,011 SGD
$1,573 USD
As of October 30, 2026
Save $4,649 SGD (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,660 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.64ct lab-grown marquise diamond

This 1.64ct lab-grown marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG436046504 or 436046504. Listed at 10 retailers as of October 30, 2026, with prices from $2,011 to $6,660, a $4,649 spread on the same certified stone. MOH London lists it at $6,660. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.64
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046504
Dimensions11.29 × 6.26 × 4.03 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
11.29 mm6.26 mm1.64 ctJ / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436046504
Side View
Table 59.0%Crown 36.1°Girdle: STK-THKPavilion 41.4°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,660 SGD|Low: $1,930 SGD|High: $6,749 SGD|Avg: $3,561 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 5$2,011 SGD
Retailer 10$2,207 SGD
Retailer 8$2,251 SGD
Retailer 6$2,332 SGD
Retailer 4$2,550 SGD
Retailer 3$2,568 SGD
Retailer 9$3,145 SGD
Retailer 7$3,670 SGD
Retailer 2$4,124 SGD
MOH London$6,660 SGD
Retailer 11$6,676 SGD

18 data points across 11 retailers

10 retailers$2,011 SGD to $6,660 SGD

B+
Cheapest Retailer
-
$2,011 SGD
$1,573 USD
B+
Retailer 2
-
$2,187 SGD
$1,711 USD
View
B+
Retailer 3
-
$2,251 SGD
$1,761 USD
View
Final sale: no returns
Retailer 4
-
$2,332 SGD
$1,824 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$2,332 SGD
$1,824 USD
View
B+
Retailer 6
-
$2,550 SGD
$1,995 USD
View
B
Retailer 7
-
$3,670 SGD
$2,871 USD
View
B
Retailer 8
-
$4,124 SGD
$3,226 USD
View
B
Retailer 9
-
$4,371 SGD
$3,419 USD
View
Most Expensive
B
MOH London
LG436046504 · Nov 1
$6,660 SGD
£4,102 GBP
View
9 more retailers have this diamond
Prices start from $2,011 SGDSave up to $4,649 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.

B+
1.64ct Marquise
$2,011 SGD