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Heart|Natural|GIA

0.55ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 7536587864

Certificate GIA 7536587864

Diamond specifications and retailer prices

From £331 GBP
As of November 6, 2026
Save £102 GBP (24%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £433 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 0.55ct natural heart diamond

This 0.55ct natural heart sits in the half to three-quarter carat band, graded G 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 7536587864. Listed at 4 retailers as of November 6, 2026, with prices from £331 to £433, a £102 spread on the same certified stone. Brilliant Earth lists it at £433. 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

0.55
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7536587864
Dimensions5.74 × 5.05 × 3.41 mm
L/W Ratio1.14
Culet sizeNone
Key to symbols
Crystal
Top View
5.74 mm5.05 mm0.55 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7536587864
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.5%

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: £433 GBP|Low: £318 GBP|High: £501 GBP|Avg: £399 GBP|-13.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3£331 GBP
Retailer 4£341 GBP
Retailer 2£421 GBP
Brilliant Earth£433 GBP

41 data points across 4 retailers

4 retailers£331 GBP to £433 GBP

A
Cheapest Retailer
-
£331 GBP
A
Retailer 2
-
£341 GBP
View
Final sale: no returns
B+
Retailer 3
-
£421 GBP
View
Most Expensive
B+
Brilliant Earth
15936830A · Nov 6
£433 GBP
$580 USD
View
3 more retailers have this diamond
Prices start from £331 GBPSave up to £102 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
0.55ct Heart
£331 GBP