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Heart|Natural|GIA

0.54ct G SI1 Heart Natural Diamond

GD • G/SI1 • GIA 1539756621

Certificate GIA 1539756621

Diamond specifications and retailer prices

From £330 GBP
As of November 6, 2026
Save £90 GBP (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £420 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.54ct natural heart diamond

This 0.54ct natural heart sits in the half to three-quarter carat band, graded G 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 1539756621. Listed at 4 retailers as of November 6, 2026, with prices from £330 to £420, a £90 spread on the same certified stone. 77 Diamonds lists it at £420. 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

0.54
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1539756621
Dimensions4.89 × 5.62 × 3.32 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
4.89 mm5.62 mm0.54 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1539756621
Side View
Table 56.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.0%

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: £420 GBP|Low: £316 GBP|High: £474 GBP|Avg: £383 GBP|-9.7%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2£330 GBP
Retailer 3£340 GBP
Retailer 4£370 GBP
77 Diamonds£420 GBP

41 data points across 4 retailers

4 retailers£330 GBP to £420 GBP

A
Cheapest Retailer
-
£330 GBP
A
Retailer 2
-
£340 GBP
View
Final sale: no returns
A
Retailer 3
-
£370 GBP
View
Most Expensive
B+
77 Diamonds
HSCPX3UKW4BM · Nov 6
£420 GBP
View
3 more retailers have this diamond
Prices start from £330 GBPSave up to £90 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
0.54ct Heart
£330 GBP