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Heart|Natural|GIA

0.37ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 6561291545

Certificate GIA 6561291545

Diamond specifications and retailer prices

From £234 GBP
SGD 425 SGD
As of November 2, 2026
Save £67 GBP (22%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £301 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.37ct natural heart diamond

This 0.37ct natural heart sits in the sub-half-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 6561291545. Listed at 2 retailers as of November 2, 2026, with prices from £234 to £301, a £67 spread on the same certified stone. 77 Diamonds lists it at £301. 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

0.37
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561291545
Dimensions4.41 × 4.96 × 2.79 mm
L/W Ratio1.12
Culet sizeNone
Key to symbols
Feather, Cavity
Top View
4.41 mm4.96 mm0.37 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561291545
Side View
Table 55.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 56.3%

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 2
Current: £301 GBP|Low: £234 GBP|High: £301 GBP|Avg: £266 GBP|+5.5%
77 Diamonds
Retailer 2
November 2, 2026
Retailer 2£234 GBP
77 Diamonds£301 GBP

38 data points across 2 retailers

2 retailers£234 GBP to £301 GBP

B+
Cheapest Retailer
-
£234 GBP
SGD 425 SGD
Most Expensive
B
77 Diamonds
HSCPSAYKZWAE · Nov 2
£301 GBP
View
1 more retailer has this diamond
Prices start from £234 GBPSave up to £67 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+
0.37ct Heart
£234 GBP