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Heart|Natural|GIA

0.51ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 6541274914

Certificate GIA 6541274914

Diamond specifications and retailer prices

From £468 GBP
As of November 5, 2026
Save £347 GBP (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £814 GBP at Jared · As of November 6, 2026
View at Jared

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541274914. Listed at 5 retailers as of November 5, 2026, with prices from £468 to £814, a £347 spread on the same certified stone. Jared 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

0.51
Carat
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.8°
OriginNatural
Grading LabGIA
CertificateGIA 6541274914
Dimensions5.01 × 5.53 × 3.21 mm
L/W Ratio1.10
Top View
5.01 mm5.53 mm0.51 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541274914
Side View
Table 59.0%CrownGirdle: STK-THKPavilion 38.8°Culet: NoneDepth 58.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £814 GBP|Low: £363 GBP|High: £814 GBP|Avg: £543 GBP
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 5, 2026
Retailer 6£363 GBP
Retailer 7£374 GBP
Retailer 13£374 GBP
Retailer 4£393 GBP
Retailer 12£397 GBP
Retailer 14£436 GBP
Retailer 2£468 GBP
Retailer 3£473 GBP
Retailer 15£501 GBP
Retailer 5£572 GBP
Retailer 16£583 GBP
Retailer 8£619 GBP
Retailer 9£734 GBP
Retailer 10£792 GBP
Retailer 11£792 GBP
Jared£814 GBP

6 data points across 16 retailers

5 retailers£468 GBP to £814 GBP

B+
Cheapest Retailer
-
£468 GBP
B
Retailer 2
-
£734 GBP
View
B
Retailer 3
-
£792 GBP
View
B
Retailer 4
-
£792 GBP
View
Most Expensive
B
Jared
158910601 · Nov 6
£814 GBP
$1,090 USD
View
4 more retailers have this diamond
Prices start from £468 GBPSave up to £347 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+
0.51ct Heart
£468 GBP