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Heart|Natural|GIA

0.37ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 2566249047

Certificate GIA 2566249047

Diamond specifications and retailer prices

From £289 GBP
$387 USD
As of November 1, 2026
Save £71 GBP (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £360 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566249047. Listed at 3 retailers as of November 1, 2026, with prices from £289 to £360, a £71 spread on the same certified stone. 77 Diamonds lists it at £360. 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566249047
Dimensions4.29 × 5.15 × 2.87 mm
L/W Ratio1.20
Culet sizeNone
Key to symbols
Crystal
Top View
4.29 mm5.15 mm0.37 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2566249047
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.7%

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 1
Current: £360 GBP|Low: £289 GBP|High: £360 GBP|Avg: £323 GBP|+5.7%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2£289 GBP
Retailer 3£308 GBP
77 Diamonds£360 GBP

39 data points across 3 retailers

3 retailers£289 GBP to £360 GBP

A
Cheapest Retailer
-
£289 GBP
$387 USD
Final sale: no returns
B+
Retailer 2
-
£308 GBP
SGD 558 SGD
View
Most Expensive
B+
77 Diamonds
HSCPTVKCNHZ4 · Nov 2
£360 GBP
View
2 more retailers have this diamond
Prices start from £289 GBPSave up to £71 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
0.37ct Heart
£289 GBP