Heart|Natural|GIA

0.64ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6515484361

Certificate GIA 6515484361

Diamond specifications and retailer prices

From £415 GBP
$556 USD
As of October 31, 2026
Save £399 GBP (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £814 GBP at GemTrove · As of November 1, 2026
View at GemTrove

About this 0.64ct natural heart diamond

This 0.64ct natural heart sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6515484361. Listed at 11 retailers as of October 31, 2026, with prices from £415 to £814, a £399 spread on the same certified stone. GemTrove lists it at £814. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.64
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6515484361
Dimensions5.96 × 5.44 × 3.11 mm
L/W Ratio1.10
Top View
5.96 mm5.44 mm0.64 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6515484361
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £814 GBP|Low: £414 GBP|High: £814 GBP|Avg: £595 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8£415 GBP
Retailer 4£425 GBP
Retailer 11£488 GBP
Retailer 7£519 GBP
Retailer 5£544 GBP
Retailer 2£578 GBP
Retailer 6£590 GBP
Retailer 3£590 GBP
Retailer 9£612 GBP
Retailer 10£634 GBP
GemTrove£814 GBP

43 data points across 11 retailers

11 retailers£415 GBP to £814 GBP

A
Cheapest Retailer
-
£415 GBP
$556 USD
A
Retailer 2
-
£425 GBP
$569 USD
View
Final sale: no returns
A
Retailer 3
-
£488 GBP
MYR 2,661 MYR
View
A
Retailer 4
-
£519 GBP
SGD 939 SGD
View
A
Retailer 5
-
£544 GBP
$729 USD
View
A
Retailer 6
-
£578 GBP
View
A
Retailer 7
-
£590 GBP
$790 USD
View
Retailer 8
-
£590 GBP
$791 USD
View
Price last confirmed 27 days ago
A
Retailer 9
-
£612 GBP
$820 USD
View
B+
Retailer 10
-
£634 GBP
$850 USD
View
Most Expensive
B+
GemTrove
GT-N-01262966-98 · Nov 1
£814 GBP
A$1,678 AUD
View
10 more retailers have this diamond
Prices start from £415 GBPSave up to £399 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
0.64ct Heart
£415 GBP