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Heart|Natural|GIA

0.51ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 6532760705

Certificate GIA 6532760705

Diamond specifications and retailer prices

From £365 GBP
As of November 6, 2026
Save £124 GBP (25%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £489 GBP at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded E 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 6532760705. Listed at 3 retailers as of November 5, 2026, with prices from £365 to £489, a £124 spread on the same certified stone. 77 Diamonds lists it at £489. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532760705
Dimensions4.81 × 5.67 × 3.34 mm
L/W Ratio1.18
Top View
4.81 mm5.67 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532760705
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.8%

Caratlytics Score

How it works →
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 6
Current: £489 GBP|Low: £322 GBP|High: £523 GBP|Avg: £426 GBP|+3.4%
77 Diamonds
Retailer 2
Retailer 3
November 5, 2026
Retailer 2£365 GBP
Retailer 3£461 GBP
77 Diamonds£489 GBP

34 data points across 3 retailers

3 retailers£365 GBP to £489 GBP

A
Cheapest Retailer
-
£365 GBP
Final sale: no returns
Retailer 2
-
£461 GBP
View
Price last confirmed 13 days ago
Most Expensive
B+
77 Diamonds
HSCPA2CGAGFF · Nov 5
£489 GBP
View
2 more retailers have this diamond
Prices start from £365 GBPSave up to £124 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
0.51ct Heart
£365 GBP