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Round|Natural|GIA

1.64ct J IF Round Natural Diamond

EX • J/IF • GIA 2557906305

Certificate GIA 2557906305

Diamond specifications and retailer prices

From $10,506 AUD
$7,363 USD
As of November 2, 2026
Save $7,691 AUD (42%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $18,198 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.64ct natural round diamond

This 1.64ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2557906305. Listed at 5 retailers as of October 29, 2026, with prices from $10,506 to $18,198, a $7,691 spread on the same certified stone. MOH London lists it at $18,198. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2557906305
Dimensions7.51 × 7.55 × 4.63 mm
L/W Ratio1.01
Star length50%
Top View
7.51 mm7.55 mm1.64 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557906305
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.5%

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: $18,198 AUD|Low: $9,552 AUD|High: $18,319 AUD|Avg: $13,329 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 3$10,506 AUD
Retailer 4$11,624 AUD
Retailer 5$13,125 AUD
Retailer 2$13,552 AUD
MOH London$18,198 AUD

21 data points across 5 retailers

5 retailers$10,506 AUD to $18,198 AUD

B+
Cheapest Retailer
-
$10,506 AUD
$7,363 USD
Final sale: no returns
B+
Retailer 2
-
$11,624 AUD
$8,146 USD
View
B+
Retailer 3
-
$13,125 AUD
$9,198 USD
View
B+
Retailer 4
-
$13,552 AUD
€9,045 EUR
View
Most Expensive
B
MOH London
A4145C61A · Oct 29
$18,198 AUD
£10,042 GBP
View
4 more retailers have this diamond
Prices start from $10,506 AUDSave up to $7,691 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 Round
$10,506 AUD