Round|Natural|GIA

1.02ct H SI2 Round Natural Diamond

VG • H/SI2 • GIA 1318307453

Certificate GIA 1318307453

Diamond specifications and retailer prices

From £1,576 GBP
As of November 5, 2026
Save £885 GBP (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,404 GBP at NZ Jewellers · As of October 20, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 1318307453. Listed at 15 retailers as of November 2, 2026, with a 56% 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

1.02
Carat
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1318307453
Dimensions6.31 × 6.30 × 4.06 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
6.31 mm6.30 mm1.02 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1318307453
Side View
Table 56.0%Crown 37°Girdle: STK-THKPavilion 40.8°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £4,404 GBP|Low: £1,576 GBP|High: £4,405 GBP|Avg: £2,291 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
November 5, 2026
Retailer 2£1,576 GBP
Retailer 6£1,863 GBP
Retailer 16£1,886 GBP
Retailer 14£1,935 GBP
Retailer 3£1,942 GBP
Retailer 8£1,944 GBP
Retailer 11£1,970 GBP
Retailer 4£2,106 GBP
Retailer 5£2,106 GBP
Retailer 17£2,187 GBP
Retailer 12£2,195 GBP
Retailer 7£2,212 GBP
Retailer 9£2,431 GBP
Retailer 10£2,461 GBP
Retailer 13£2,462 GBP
Retailer 15£3,710 GBP
NZ Jewellers£4,404 GBP

35 data points across 17 retailers

15 retailers£1,576 GBP to £2,461 GBP

A
Cheapest Retailer
-
£1,576 GBP
Retailer 2
-
£1,863 GBP
View
Price last confirmed 16 days ago
Retailer 3
-
£1,886 GBP
View
Price last confirmed 17 days ago
Retailer 4
-
£1,935 GBP
View
Price last confirmed 16 days ago
Retailer 5
-
£1,942 GBP
View
Price last confirmed 16 days ago
Retailer 6
-
£2,106 GBP
View
Price last confirmed 21 days ago
Retailer 7
-
£2,106 GBP
View
Price last confirmed 15 days ago
Retailer 8
-
£2,187 GBP
View
Price last confirmed 22 days ago
Retailer 9
-
£2,195 GBP
View
Price last confirmed 15 days ago
Retailer 10
-
£2,212 GBP
View
Price last confirmed 19 days ago
Retailer 11
-
£2,431 GBP
View
Price last confirmed 16 days ago
B+
Retailer 12
-
£2,461 GBP
View
Retailer 13
-
£2,462 GBP
View
Price last confirmed 16 days ago
Retailer 14
-
£3,710 GBP
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
8507b870-7903-4e37-8912-1098d502ee24 · Oct 20
£4,404 GBP
$5,928 USD
View
Price last confirmed 16 days ago
14 more retailers have this diamond
Prices start from £1,576 GBPSave up to £885 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
£1,576 GBP