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Heart|Natural|GIA

0.91ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 6385126612

Certificate GIA 6385126612

Diamond specifications and retailer prices

From £1,597 GBP
$2,143 USD
As of November 1, 2026
Save £1,822 GBP (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,419 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded H 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 6385126612. Listed at 18 retailers as of November 1, 2026, with prices from £1,597 to £3,419, a £1,822 spread on the same certified stone. MOH London lists it at £3,419. 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

0.91
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6385126612
Dimensions5.74 × 5.24 × 3.56 mm
L/W Ratio1.10
Top View
5.74 mm5.24 mm0.91 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6385126612
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.8%

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: Nov 1
Current: £3,419 GBP|Low: £1,610 GBP|High: £3,460 GBP|Avg: £2,337 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 5£1,610 GBP
Retailer 11£1,631 GBP
Retailer 10£1,709 GBP
Retailer 4£1,762 GBP
Retailer 3£1,768 GBP
Retailer 9£2,005 GBP
Retailer 2£2,086 GBP
Retailer 12£2,186 GBP
Retailer 7£2,437 GBP
Retailer 6£2,878 GBP
Retailer 8£3,237 GBP
MOH London£3,419 GBP

41 data points across 12 retailers

18 retailers£1,597 GBP to £3,419 GBP

B
Cheapest Retailer
-
£1,597 GBP
$2,143 USD
B
Retailer 2
-
£1,610 GBP
$2,160 USD
View
B
Retailer 3
-
£1,631 GBP
$2,189 USD
View
Final sale: no returns
B
Retailer 4
-
£1,705 GBP
$2,288 USD
View
B
Retailer 5
-
£1,709 GBP
$2,294 USD
View
B
Retailer 6
-
£1,762 GBP
$2,365 USD
View
Retailer 7
-
£1,768 GBP
$2,372 USD
View
Price last confirmed 25 days ago
B
Retailer 8
-
£1,804 GBP
$2,420 USD
View
B
Retailer 9
-
£1,960 GBP
$2,630 USD
View
B
Retailer 10
-
£1,960 GBP
$2,630 USD
View
B
Retailer 11
-
£2,005 GBP
$2,690 USD
View
B
Retailer 12
-
£2,027 GBP
$2,720 USD
View
B
Retailer 13
-
£2,086 GBP
View
Retailer 14
-
£2,186 GBP
A$4,514 AUD
View
Price last confirmed 25 days ago
B
Retailer 15
-
£2,437 GBP
€3,114 EUR
View
B
Retailer 16
-
£2,878 GBP
ZAR 62,399 ZAR
View
C
Retailer 17
-
£3,237 GBP
View
Most Expensive
B
MOH London
81D5A6BB1 · Nov 2
£3,419 GBP
View
17 more retailers have this diamond
Prices start from £1,597 GBPSave up to £1,822 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
0.91ct Heart
£1,597 GBP