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Heart|Natural|GIA

0.64ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 6502623436

Certificate GIA 6502623436

Diamond specifications and retailer prices

From £502 GBP
$672 USD
As of October 29, 2026
Save £512 GBP (51%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,013 GBP at Fonder Diamond · As of October 31, 2026
View at Fonder Diamond

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6502623436. Listed at 2 retailers as of October 29, 2026, with prices from £502 to £1,013, a £512 spread on the same certified stone. Fonder Diamond lists it at £1,013. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

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

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6502623436
Dimensions4.73 × 8.11 × 2.87 mm
L/W Ratio1.71
Top View
4.73 mm8.11 mm0.64 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6502623436
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £1,013 GBP|Low: £487 GBP|High: £1,020 GBP|Avg: £760 GBP|-0.4%
Fonder Diamond
Retailer 2
October 22, 2026
Retailer 2£502 GBP
Fonder Diamond£1,013 GBP

6 data points across 2 retailers

2 retailers£502 GBP to £1,013 GBP

A
Cheapest Retailer
-
£502 GBP
$672 USD
Most Expensive
B
Fonder Diamond
97002581 · Oct 31
£1,013 GBP
SGD 1,835 SGD
View
1 more retailer has this diamond
Prices start from £502 GBPSave up to £512 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
£502 GBP