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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 £3,888 GBP
HK$40,700 HKD
As of November 1, 2026
Save £4,899 GBP (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £8,787 GBP 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 £3,888 to £8,787, a £4,899 spread on the same certified stone. NZ Jewellers lists it at £8,787. 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: £8,787 GBP|Low: £3,850 GBP|High: £8,819 GBP|Avg: £5,485 GBP|-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£3,888 GBP
Retailer 9£4,525 GBP
Retailer 4£4,582 GBP
Retailer 7£4,850 GBP
Retailer 8£5,254 GBP
Retailer 5£5,335 GBP
Retailer 10£5,582 GBP
Retailer 2£5,716 GBP
Retailer 6£6,062 GBP
NZ Jewellers£8,787 GBP

22 data points across 10 retailers

8 retailers£3,888 GBP to £8,787 GBP

A
Cheapest Retailer
-
£3,888 GBP
HK$40,700 HKD
B+
Retailer 2
-
£4,582 GBP
$6,140 USD
View
B+
Retailer 3
-
£4,850 GBP
$6,498 USD
View
B+
Retailer 4
-
£5,254 GBP
$7,040 USD
View
B+
Retailer 5
-
£5,335 GBP
$7,148 USD
View
B+
Retailer 6
-
£5,716 GBP
€7,294 EUR
View
B
Retailer 7
-
£6,062 GBP
$8,123 USD
View
Most Expensive
B
NZ Jewellers
9a756e69-1c1c-4f17-b479-10fa98c22f1f · Oct 30
£8,787 GBP
$11,774 USD
View
7 more retailers have this diamond
Prices start from £3,888 GBPSave up to £4,899 GBP

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
£3,888 GBP