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Heart|Natural|GIA

0.63ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 5556013420

Certificate GIA 5556013420

Diamond specifications and retailer prices

From £445 GBP
MYR 2,435 MYR
As of November 2, 2026
Save £106 GBP (19%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £562 GBP at Brilliance · As of October 5, 2026
View at Brilliance

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 5556013420. Listed at 5 retailers as of November 2, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556013420
Dimensions5.23 × 6.00 × 3.56 mm
L/W Ratio1.15
Top View
5.23 mm6.00 mm0.63 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556013420
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.3%

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: Nov 2
Current: £562 GBP|Low: £429 GBP|High: £605 GBP|Avg: £524 GBP|-4.3%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2£445 GBP
Retailer 4£448 GBP
Retailer 5£495 GBP
Retailer 3£551 GBP
Brilliance£562 GBP

40 data points across 5 retailers

5 retailers£445 GBP to £551 GBP

A
Cheapest Retailer
-
£445 GBP
MYR 2,435 MYR
A
Retailer 2
-
£448 GBP
$601 USD
View
Final sale: no returns
A
Retailer 3
-
£495 GBP
SGD 897 SGD
View
A
Retailer 4
-
£551 GBP
View
Most Expensive
Brilliance
D40811360 · Oct 5
£562 GBP
$754 USD
View
Price last confirmed 28 days ago
4 more retailers have this diamond
Prices start from £445 GBPSave up to £106 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
£445 GBP