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Heart|Natural|GIA

0.40ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 2537060451

Certificate GIA 2537060451

Diamond specifications and retailer prices

From £277 GBP
SGD 501 SGD
As of November 1, 2026
Save £137 GBP (33%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £414 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 0.4ct natural heart diamond

This 0.4ct natural heart sits in the sub-half-carat band, graded I 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 2537060451. Listed at 6 retailers as of October 27, 2026, with prices from £277 to £414, a £137 spread on the same certified stone. Wholesale Diamonds Direct lists it at £414. 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

0.40
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle38.36°
Pavilion angle39.89°
OriginNatural
Grading LabGIA
CertificateGIA 2537060451
Dimensions4.50 × 5.14 × 3.02 mm
L/W Ratio1.14
Culet sizeNone
Top View
4.50 mm5.14 mm0.40 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537060451
Side View
Table 58.0%Crown 38.36°Girdle: MED-VTKPavilion 39.89°Culet: NoneDepth 58.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £367 GBP|Low: £277 GBP|High: £449 GBP|Avg: £352 GBP|+6.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Wholesale Diamonds Direct
November 1, 2026
Retailer 5£277 GBP
Retailer 4£307 GBP
Retailer 3£319 GBP
Retailer 2£360 GBP
Retailer 1£367 GBP
Wholesale Diamonds Direct£414 GBP

40 data points across 6 retailers

6 retailers£277 GBP to £414 GBP

A
Cheapest Retailer
-
£277 GBP
SGD 501 SGD
A
Retailer 2
-
£307 GBP
SGD 555 SGD
View
B+
Retailer 3
-
£319 GBP
$427 USD
View
B+
Retailer 4
-
£360 GBP
$482 USD
View
B
Retailer 5
-
£367 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
393800484 · Oct 27
£414 GBP
$554 USD
View
5 more retailers have this diamond
Prices start from £277 GBPSave up to £137 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
0.40ct Heart
£277 GBP