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Heart|Natural|GIA

0.40ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 7566253653

Certificate GIA 7566253653

Diamond specifications and retailer prices

From £206 GBP
$276 USD
As of November 2, 2026
Save £67 GBP (25%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £273 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 7566253653. Listed at 3 retailers as of November 2, 2026, with prices from £206 to £273, a £67 spread on the same certified stone. 77 Diamonds lists it at £273. 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

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

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7566253653
Dimensions4.62 × 5.03 × 2.92 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural
Top View
4.62 mm5.03 mm0.40 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 7566253653
Side View
Table 55.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 58.2%

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 2
Current: £273 GBP|Low: £178 GBP|High: £282 GBP|Avg: £235 GBP|+2.8%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2£206 GBP
Retailer 3£214 GBP
77 Diamonds£273 GBP

39 data points across 3 retailers

3 retailers£206 GBP to £273 GBP

A
Cheapest Retailer
-
£206 GBP
$276 USD
Final sale: no returns
B+
Retailer 2
-
£214 GBP
SGD 388 SGD
View
Most Expensive
B+
77 Diamonds
HSCPPAFE2YZZ · Nov 2
£273 GBP
View
2 more retailers have this diamond
Prices start from £206 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.

A
0.40ct Heart
£206 GBP