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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 $2,239 AUD
$1,573 USD
As of November 2, 2026
Save $5,177 AUD (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,416 AUD 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 November 1, 2026, with prices from $2,239 to $7,416, a $5,177 spread on the same certified stone. MOH London lists it at $7,416. 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: Nov 2
Current: $7,416 AUD|Low: $2,150 AUD|High: $7,516 AUD|Avg: $3,966 AUD
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$2,239 AUD
Retailer 10$2,457 AUD
Retailer 8$2,507 AUD
Retailer 6$2,597 AUD
Retailer 4$2,840 AUD
Retailer 3$2,860 AUD
Retailer 9$3,502 AUD
Retailer 7$4,087 AUD
Retailer 2$4,593 AUD
MOH London$7,416 AUD
Retailer 11$7,434 AUD

18 data points across 11 retailers

10 retailers$2,239 AUD to $7,416 AUD

B+
Cheapest Retailer
-
$2,239 AUD
$1,573 USD
B+
Retailer 2
-
$2,436 AUD
$1,711 USD
View
B+
Retailer 3
-
$2,507 AUD
$1,761 USD
View
Final sale: no returns
Retailer 4
-
$2,597 AUD
$1,824 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$2,597 AUD
$1,824 USD
View
B+
Retailer 6
-
$2,840 AUD
$1,995 USD
View
B
Retailer 7
-
$4,087 AUD
$2,871 USD
View
B
Retailer 8
-
$4,593 AUD
$3,226 USD
View
B
Retailer 9
-
$4,867 AUD
$3,419 USD
View
Most Expensive
B
MOH London
LG436046504 · Nov 1
$7,416 AUD
£4,102 GBP
View
9 more retailers have this diamond
Prices start from $2,239 AUDSave up to $5,177 AUD

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
$2,239 AUD