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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 €4,663 EUR
HK$40,700 HKD
As of November 1, 2026
Save €5,876 EUR (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €10,539 EUR 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 €4,663 to €10,539, a €5,876 spread on the same certified stone. NZ Jewellers lists it at €10,539. 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
Color
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: €10,539 EUR|Low: €4,617 EUR|High: €10,577 EUR|Avg: €6,579 EUR|-0.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 3€4,663 EUR
Retailer 9€5,427 EUR
Retailer 4€5,496 EUR
Retailer 7€5,816 EUR
Retailer 8€6,301 EUR
Retailer 5€6,398 EUR
Retailer 10€6,694 EUR
Retailer 2€6,855 EUR
Retailer 6€7,271 EUR
NZ Jewellers€10,539 EUR

22 data points across 10 retailers

8 retailers€4,663 EUR to €10,539 EUR

A
Cheapest Retailer
-
€4,663 EUR
HK$40,700 HKD
B+
Retailer 2
-
€5,496 EUR
$6,140 USD
View
B+
Retailer 3
-
€5,816 EUR
$6,498 USD
View
B+
Retailer 4
-
€6,301 EUR
$7,040 USD
View
B+
Retailer 5
-
€6,398 EUR
$7,148 USD
View
B+
Retailer 6
-
€6,855 EUR
View
B
Retailer 7
-
€7,271 EUR
$8,123 USD
View
Most Expensive
B
NZ Jewellers
9a756e69-1c1c-4f17-b479-10fa98c22f1f · Oct 30
€10,539 EUR
$11,774 USD
View
7 more retailers have this diamond
Prices start from €4,663 EURSave up to €5,876 EUR

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
€4,663 EUR