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Round|Natural|GIA

1.02ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 1525159336

Certificate GIA 1525159336

Diamond specifications and retailer prices

From £1,442 GBP
As of November 5, 2026
Save £2,750 GBP (66%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,583 GBP at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1525159336. Listed at 17 retailers as of November 5, 2026, with a 191% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.02
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1525159336
Dimensions6.44 × 6.40 × 4.02 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Crystal, Needle, Indented Natural
Top View
6.44 mm6.40 mm1.02 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525159336
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

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: £4,192 GBP|Low: £1,442 GBP|High: £4,583 GBP|Avg: £2,205 GBP|-8.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5£1,442 GBP
Retailer 9£1,464 GBP
Retailer 4£1,759 GBP
Retailer 10£1,796 GBP
Retailer 2£2,036 GBP
Retailer 3£2,109 GBP
Retailer 6£2,166 GBP
Retailer 7£2,251 GBP
Retailer 8£3,513 GBP
NZ Jewellers£4,192 GBP

30 data points across 10 retailers

17 retailers£1,442 GBP to £4,192 GBP

A
Cheapest Retailer
-
£1,442 GBP
A
Retailer 2
-
£1,464 GBP
View
A
Retailer 3
-
£1,759 GBP
View
A
Retailer 4
-
£1,772 GBP
View
A
Retailer 5
-
£1,796 GBP
View
Retailer 6
-
£1,892 GBP
View
Price last confirmed 82 days ago
A
Retailer 7
-
£2,005 GBP
View
A
Retailer 8
-
£2,036 GBP
View
A
Retailer 9
-
£2,083 GBP
View
A
Retailer 10
-
£2,109 GBP
View
A
Retailer 11
-
£2,110 GBP
View
A
Retailer 12
-
£2,166 GBP
View
A
Retailer 13
-
£2,251 GBP
View
B+
Retailer 14
-
£2,314 GBP
View
B+
Retailer 15
-
£3,513 GBP
View
B
Retailer 16
-
£4,192 GBP
View
Most Expensive
NZ Jewellers
2486f342-7bd9-4681-9583-47cfd3408ee9 · Sep 15
£4,583 GBP
$6,168 USD
View
Price last confirmed 52 days ago
16 more retailers have this diamond
Prices start from £1,442 GBPSave up to £2,750 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 Round
£1,442 GBP