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Round|Natural|GIA

1.64ct D I1 Round Natural Diamond

EX • D/I1 • GIA 6512267532

Certificate GIA 6512267532

Diamond specifications and retailer prices

From $6,660 SGD
HK$40,700 HKD
As of November 1, 2026
Save $8,392 SGD (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $15,052 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.64ct natural round diamond

This 1.64ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6512267532. Listed at 8 retailers as of October 30, 2026, with prices from $6,660 to $15,052, a $8,392 spread on the same certified stone. NZ Jewellers lists it at $15,052. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
D
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6512267532
Dimensions7.46 × 7.53 × 4.68 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Top View
7.46 mm7.53 mm1.64 ctD / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512267532
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: Nov 1
Current: $15,052 SGD|Low: $6,594 SGD|High: $15,107 SGD|Avg: $9,399 SGD|-0.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 2$6,660 SGD
Retailer 9$7,751 SGD
Retailer 4$7,849 SGD
Retailer 7$8,307 SGD
Retailer 8$9,000 SGD
Retailer 5$9,138 SGD
Retailer 10$9,561 SGD
Retailer 3$9,834 SGD
Retailer 6$10,384 SGD
NZ Jewellers$15,052 SGD

21 data points across 10 retailers

8 retailers$6,660 SGD to $15,052 SGD

A
Cheapest Retailer
-
$6,660 SGD
HK$40,700 HKD
B+
Retailer 2
-
$7,849 SGD
$6,140 USD
View
B+
Retailer 3
-
$8,307 SGD
$6,498 USD
View
B+
Retailer 4
-
$9,000 SGD
$7,040 USD
View
B+
Retailer 5
-
$9,138 SGD
$7,148 USD
View
B+
Retailer 6
-
$9,834 SGD
€7,326 EUR
View
B
Retailer 7
-
$10,384 SGD
$8,123 USD
View
Most Expensive
B
NZ Jewellers
9a756e69-1c1c-4f17-b479-10fa98c22f1f · Oct 30
$15,052 SGD
$11,774 USD
View
7 more retailers have this diamond
Prices start from $6,660 SGDSave up to $8,392 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
$6,660 SGD