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Heart|Natural|GIA

0.63ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6532643469

Certificate GIA 6532643469

Diamond specifications and retailer prices

From £397 GBP
$532 USD
As of October 31, 2026
Save £103 GBP (21%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £500 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 0.63ct natural heart diamond

This 0.63ct 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 6532643469. Listed at 5 retailers as of October 31, 2026, with prices from £397 to £500, a £103 spread on the same certified stone. Brilliant Earth lists it at £500. 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

0.63
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6532643469
Dimensions6.10 × 5.25 × 3.43 mm
L/W Ratio1.16
Top View
6.10 mm5.25 mm0.63 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6532643469
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 56.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £500 GBP|Low: £384 GBP|High: £605 GBP|Avg: £478 GBP|-17.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 3£397 GBP
Retailer 5£406 GBP
Retailer 4£437 GBP
Retailer 2£486 GBP
Brilliant Earth£500 GBP

40 data points across 5 retailers

5 retailers£397 GBP to £500 GBP

A
Cheapest Retailer
-
£397 GBP
$532 USD
Final sale: no returns
A
Retailer 2
-
£406 GBP
MYR 2,214 MYR
View
A
Retailer 3
-
£437 GBP
SGD 792 SGD
View
A
Retailer 4
-
£486 GBP
View
Most Expensive
A
Brilliant Earth
16020395A · Oct 31
£500 GBP
$670 USD
View
4 more retailers have this diamond
Prices start from £397 GBPSave up to £103 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
0.63ct Heart
£397 GBP