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Heart|Natural|GIA

0.90ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 6392431130

Certificate GIA 6392431130

Diamond specifications and retailer prices

From £1,713 GBP
$2,295 USD
As of October 31, 2026
Save £775 GBP (31%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,488 GBP at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6392431130. Listed at 10 retailers as of October 31, 2026, with prices from £1,713 to £2,488, a £775 spread on the same certified stone. The Diamond Guys lists it at £2,488. 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

0.90
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6392431130
Dimensions5.96 × 6.56 × 3.81 mm
L/W Ratio1.10
Top View
5.96 mm6.56 mm0.90 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6392431130
Side View
Table 55.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £2,378 GBP|Low: £1,713 GBP|High: £2,488 GBP|Avg: £2,128 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
The Diamond Guys
October 31, 2026
Retailer 3£1,713 GBP
Retailer 9£1,767 GBP
Retailer 4£1,855 GBP
Retailer 2£2,133 GBP
Retailer 8£2,149 GBP
Retailer 6£2,246 GBP
Retailer 7£2,246 GBP
Retailer 5£2,321 GBP
Retailer 1£2,378 GBP
The Diamond Guys£2,488 GBP

19 data points across 10 retailers

10 retailers£1,713 GBP to £2,488 GBP

B
Cheapest Retailer
-
£1,713 GBP
$2,295 USD
B
Retailer 2
-
£1,767 GBP
$2,367 USD
View
B
Retailer 3
-
£1,855 GBP
$2,485 USD
View
B
Retailer 4
-
£2,133 GBP
$2,858 USD
View
B
Retailer 5
-
£2,149 GBP
CA$4,000 CAD
View
B
Retailer 6
-
£2,246 GBP
$3,010 USD
View
B
Retailer 7
-
£2,246 GBP
$3,010 USD
View
B
Retailer 8
-
£2,321 GBP
$3,110 USD
View
B
Retailer 9
-
£2,378 GBP
€3,034 EUR
View
Most Expensive
B
The Diamond Guys
1947489975 · Oct 31
£2,488 GBP
$3,333 USD
View
9 more retailers have this diamond
Prices start from £1,713 GBPSave up to £775 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
0.90ct Heart
£1,713 GBP