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Heart|Natural|GIA

0.91ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2386674003

Certificate GIA 2386674003

Diamond specifications and retailer prices

From £879 GBP
HK$9,200 HKD
As of November 1, 2026
Save £1,997 GBP (69%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,876 GBP at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2386674003. Listed at 19 retailers as of October 30, 2026, with prices from £879 to £2,876, a £1,997 spread on the same certified stone. NZ Jewellers lists it at £2,876. 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

0.91
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2386674003
Dimensions6.69 × 6.10 × 3.55 mm
L/W Ratio1.10
Top View
6.69 mm6.10 mm0.91 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2386674003
Side View
Table 54.0%CrownGirdle: NULPavilionCulet: NoneDepth 58.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £1,321 GBP|Low: £869 GBP|High: £2,091 GBP|Avg: £1,412 GBP|+5.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3£879 GBP
Retailer 7£1,088 GBP
Retailer 4£1,093 GBP
Retailer 9£1,243 GBP
Retailer 1£1,321 GBP
Retailer 6£1,528 GBP
Retailer 8£1,539 GBP
Retailer 5£1,739 GBP
Retailer 2£2,066 GBP

43 data points across 9 retailers

19 retailers£879 GBP to £2,876 GBP

B+
Cheapest Retailer
-
£879 GBP
HK$9,200 HKD
B
Retailer 2
-
£1,088 GBP
$1,458 USD
View
Final sale: no returns
B
Retailer 3
-
£1,093 GBP
$1,465 USD
View
B
Retailer 4
-
£1,093 GBP
$1,465 USD
View
B
Retailer 5
-
£1,179 GBP
$1,580 USD
View
B
Retailer 6
-
£1,179 GBP
$1,580 USD
View
B
Retailer 7
-
£1,226 GBP
SGD 2,220 SGD
View
B
Retailer 8
-
£1,234 GBP
$1,653 USD
View
B
Retailer 9
-
£1,243 GBP
$1,666 USD
View
B
Retailer 10
-
£1,321 GBP
View
B
Retailer 11
-
£1,361 GBP
$1,823 USD
View
B
Retailer 12
-
£1,361 GBP
$1,823 USD
View
B
Retailer 13
-
£1,443 GBP
$1,934 USD
View
B
Retailer 14
-
£1,528 GBP
€1,950 EUR
View
Retailer 15
-
£1,539 GBP
A$3,172 AUD
View
Price last confirmed 27 days ago
B
Retailer 16
-
£1,698 GBP
$2,275 USD
View
B
Retailer 17
-
£1,739 GBP
ZAR 37,650 ZAR
View
B
Retailer 18
-
£2,066 GBP
View
Most Expensive
C
NZ Jewellers
d8672238-7332-4ed4-a283-56bc9538d0f8 · Oct 30
£2,876 GBP
$3,854 USD
View
18 more retailers have this diamond
Prices start from £879 GBPSave up to £1,997 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
£879 GBP