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Heart|Natural|GIA

0.91ct J IF Heart Natural Diamond

EX • J/IF • GIA 1545945750

Certificate GIA 1545945750

Diamond specifications and retailer prices

From £1,063 GBP
$1,424 USD
As of November 1, 2026
Save £204 GBP (16%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,267 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545945750. Listed at 5 retailers as of October 31, 2026, with prices from £1,063 to £1,267, a £204 spread on the same certified stone. Blue Nile lists it at £1,267. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.91
Carat
J
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545945750
Dimensions5.83 × 6.82 × 4.05 mm
L/W Ratio1.17
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
5.83 mm6.82 mm0.91 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545945750
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.4%

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: £1,267 GBP|Low: £1,063 GBP|High: £1,397 GBP|Avg: £1,180 GBP|-9.3%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 3£1,063 GBP
Retailer 5£1,071 GBP
Retailer 2£1,154 GBP
Retailer 4£1,191 GBP
Blue Nile£1,267 GBP

40 data points across 5 retailers

5 retailers£1,063 GBP to £1,267 GBP

A
Cheapest Retailer
-
£1,063 GBP
$1,424 USD
A
Retailer 2
-
£1,071 GBP
MYR 5,844 MYR
View
B+
Retailer 3
-
£1,154 GBP
View
B+
Retailer 4
-
£1,191 GBP
SGD 2,157 SGD
View
Most Expensive
B+
Blue Nile
28720774 · Oct 31
£1,267 GBP
$1,698 USD
View
4 more retailers have this diamond
Prices start from £1,063 GBPSave up to £204 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
0.91ct Heart
£1,063 GBP