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Heart|Natural|GIA

1.00ct J SI2 Heart Natural Diamond

GD • J/SI2 • GIA 1232707662

Certificate GIA 1232707662

Diamond specifications and retailer prices

From £1,186 GBP
As of November 5, 2026
Save £651 GBP (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,232 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1232707662. Listed at 11 retailers as of November 5, 2026, with a 55% 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

1.00
Carat
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1232707662
Dimensions6.98 × 6.95 × 3.34 mm
L/W Ratio1.00
Top View
6.98 mm6.95 mm1.00 ctJ / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1232707662
Side View
Table 59.0%CrownGirdle: Ext. ThickPavilionCulet: MediumDepth 48.0%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £1,837 GBP|Low: £1,068 GBP|High: £2,741 GBP|Avg: £1,571 GBP|+17.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6£1,185 GBP
Retailer 9£1,186 GBP
Retailer 10£1,209 GBP
Retailer 3£1,267 GBP
Retailer 8£1,276 GBP
Retailer 7£1,449 GBP
Retailer 2£1,705 GBP
Retailer 1£1,837 GBP
Retailer 4£2,093 GBP
Retailer 5£2,733 GBP

37 data points across 10 retailers

11 retailers£1,186 GBP to £1,837 GBP

Retailer 1
-
£1,157 GBP
Price last confirmed 102 days ago
B+
Retailer 2
-
£1,186 GBP
View
B
Retailer 3
-
£1,267 GBP
View
Retailer 4
-
£1,401 GBP
View
Price last confirmed 29 days ago
Retailer 5
-
£1,401 GBP
View
Price last confirmed 29 days ago
Retailer 6
-
£1,465 GBP
View
Price last confirmed 36 days ago
Retailer 7
-
£1,616 GBP
View
Price last confirmed 38 days ago
B
Retailer 8
-
£1,647 GBP
View
C
Retailer 9
-
£1,837 GBP
View
Retailer 10
-
£2,733 GBP
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
5b2cb2a0-fbc4-449c-9488-a9e1c27fc0ed · Sep 30
£3,232 GBP
$4,326 USD
View
Price last confirmed 37 days ago
10 more retailers have this diamond
Prices start from £1,186 GBPSave up to £651 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+
1.00ct Heart
£1,186 GBP