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Heart|Natural|GIA

0.63ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 5416145055

Certificate GIA 5416145055

Diamond specifications and retailer prices

From £765 GBP
$1,026 USD
As of November 2, 2026
Save £514 GBP (40%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,676 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.63ct natural heart diamond

This 0.63ct natural heart sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5416145055. Listed at 18 retailers as of November 2, 2026, with a 67% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.63
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5416145055
Dimensions5.14 × 4.57 × 3.10 mm
L/W Ratio1.12
Top View
5.14 mm4.57 mm0.63 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5416145055
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,676 GBP|Low: £701 GBP|High: £1,696 GBP|Avg: £1,101 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 13£765 GBP
Retailer 7£790 GBP
Retailer 4£794 GBP
Retailer 9£794 GBP
Retailer 11£829 GBP
Retailer 12£901 GBP
Retailer 6£1,044 GBP
Retailer 5£1,052 GBP
Retailer 2£1,123 GBP
Retailer 3£1,196 GBP
Retailer 8£1,279 GBP
Retailer 10£1,366 GBP
MOH London£1,676 GBP

39 data points across 13 retailers

18 retailers£765 GBP to £1,279 GBP

B
Cheapest Retailer
-
£765 GBP
$1,026 USD
Final sale: no returns
B
Retailer 2
-
£790 GBP
$1,060 USD
View
B
Retailer 3
-
£794 GBP
$1,065 USD
View
B
Retailer 4
-
£794 GBP
$1,065 USD
View
B
Retailer 5
-
£829 GBP
$1,112 USD
View
B
Retailer 6
-
£898 GBP
$1,205 USD
View
B
Retailer 7
-
£901 GBP
$1,209 USD
View
C
Retailer 8
-
£961 GBP
$1,290 USD
View
C
Retailer 9
-
£961 GBP
$1,290 USD
View
C
Retailer 10
-
£991 GBP
$1,330 USD
View
C
Retailer 11
-
£1,044 GBP
View
C
Retailer 12
-
£1,052 GBP
$1,412 USD
View
B
Retailer 13
-
£1,123 GBP
View
C
Retailer 14
-
£1,169 GBP
$1,568 USD
View
Retailer 15
-
£1,196 GBP
A$2,470 AUD
View
Price last confirmed 29 days ago
C
Retailer 16
-
£1,279 GBP
€1,634 EUR
View
Retailer 17
-
£1,366 GBP
ZAR 29,624 ZAR
View
Price under review
Most Expensive
MOH London
C0E08A808 · Nov 2
£1,676 GBP
View
Price under review
17 more retailers have this diamond
Prices start from £765 GBPSave up to £514 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.

B
0.63ct Heart
£765 GBP