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Heart|Natural|GIA

1.02ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 1525714815

Certificate GIA 1525714815

Diamond specifications and retailer prices

From £850 GBP
As of November 5, 2026
Save £1,793 GBP (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,643 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural heart diamond

This 1.02ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1525714815. Listed at 18 retailers as of November 5, 2026, with prices from £850 to £2,643, a £1,793 spread on the same certified stone. NZ Jewellers lists it at £2,643. 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

1.02
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle39.5°
OriginNatural
Grading LabGIA
CertificateGIA 1525714815
Dimensions7.06 × 6.06 × 3.48 mm
L/W Ratio1.17
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.06 mm6.06 mm1.02 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525714815
Side View
Table 59.0%Crown 36.8°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 57.4%

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: Nov 5
Current: £2,643 GBP|Low: £849 GBP|High: £2,643 GBP|Avg: £1,329 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 14£850 GBP
Retailer 2£953 GBP
Retailer 6£1,005 GBP
Retailer 12£1,051 GBP
Retailer 4£1,084 GBP
Retailer 17£1,084 GBP
Retailer 7£1,102 GBP
Retailer 3£1,128 GBP
Retailer 9£1,134 GBP
Retailer 19£1,158 GBP
Retailer 5£1,185 GBP
Retailer 13£1,196 GBP
Retailer 8£1,207 GBP
Retailer 18£1,251 GBP
Retailer 15£1,322 GBP
Retailer 10£1,546 GBP
Retailer 11£1,852 GBP
Retailer 16£1,893 GBP
NZ Jewellers£2,643 GBP

22 data points across 19 retailers

18 retailers£850 GBP to £2,643 GBP

A
Cheapest Retailer
-
£850 GBP
A
Retailer 2
-
£953 GBP
View
A
Retailer 3
-
£1,005 GBP
View
A
Retailer 4
-
£1,051 GBP
View
Retailer 5
-
£1,084 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£1,084 GBP
View
B+
Retailer 7
-
£1,102 GBP
View
B+
Retailer 8
-
£1,128 GBP
View
B+
Retailer 9
-
£1,134 GBP
View
B+
Retailer 10
-
£1,158 GBP
View
B+
Retailer 11
-
£1,185 GBP
View
B+
Retailer 12
-
£1,196 GBP
View
B+
Retailer 13
-
£1,207 GBP
View
B+
Retailer 14
-
£1,251 GBP
View
B+
Retailer 15
-
£1,322 GBP
View
B
Retailer 16
-
£1,546 GBP
View
B
Retailer 17
-
£1,893 GBP
View
Most Expensive
B
NZ Jewellers
028d3003-76bd-440e-9a5e-fddbdce80920 · Nov 5
£2,643 GBP
$3,538 USD
View
17 more retailers have this diamond
Prices start from £850 GBPSave up to £1,793 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
1.02ct Heart
£850 GBP