Heart|Natural|GIA

0.91ct J IF Heart Natural Diamond

VG • J/IF • GIA 1539303593

Certificate GIA 1539303593

Diamond specifications and retailer prices

From £831 GBP
HK$8,700 HKD
As of October 30, 2026
Save £609 GBP (42%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,890 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1539303593. Listed at 13 retailers as of October 29, 2026, with a 73% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
IF
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle43°
OriginNatural
Grading LabGIA
CertificateGIA 1539303593
Dimensions5.55 × 6.58 × 4.18 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
5.55 mm6.58 mm0.91 ctJ / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1539303593
Side View
Table 58.0%CrownGirdle: MED-THKPavilion 43°Culet: NoneDepth 63.5%

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: Oct 30
Current: £1,233 GBP|Low: £831 GBP|High: £2,140 GBP|Avg: £1,352 GBP|-5.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 8£831 GBP
Retailer 10£1,020 GBP
Retailer 7£1,078 GBP
Retailer 5£1,078 GBP
Retailer 2£1,169 GBP
Retailer 12£1,209 GBP
Retailer 1£1,233 GBP
Retailer 3£1,440 GBP
Retailer 4£1,500 GBP
Retailer 6£1,601 GBP
Retailer 9£1,765 GBP
Retailer 11£1,948 GBP

36 data points across 12 retailers

13 retailers£831 GBP to £1,440 GBP

A
Cheapest Retailer
-
£831 GBP
HK$8,700 HKD
B+
Retailer 2
-
£1,020 GBP
$1,367 USD
View
Final sale: no returns
B+
Retailer 3
-
£1,078 GBP
$1,444 USD
View
B+
Retailer 4
-
£1,078 GBP
$1,445 USD
View
Retailer 5
-
£1,169 GBP
SGD 2,117 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£1,209 GBP
$1,620 USD
View
B+
Retailer 7
-
£1,233 GBP
View
B+
Retailer 8
-
£1,440 GBP
SGD 2,607 SGD
View
Retailer 9
-
£1,500 GBP
A$3,092 AUD
View
Price last confirmed 25 days ago
Retailer 10
-
£1,601 GBP
ZAR 34,659 ZAR
View
Price last confirmed 9 days ago
Retailer 11
-
£1,765 GBP
$2,365 USD
View
Price last confirmed 7 days ago
Retailer 12
-
£1,948 GBP
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
49f54428-ddde-47be-a51b-3a8413b068da · Sep 25
£2,890 GBP
$3,872 USD
View
Price last confirmed 35 days ago
12 more retailers have this diamond
Prices start from £831 GBPSave up to £609 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
£831 GBP