Round|Natural|GIA

1.02ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2527883496

Certificate GIA 2527883496

Diamond specifications and retailer prices

From £2,152 GBP
As of November 6, 2026
Save £2,071 GBP (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,244 GBP at NZ Jewellers · As of September 28, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2527883496. Listed at 19 retailers as of November 5, 2026, with a 96% 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2527883496
Dimensions6.42 × 6.37 × 3.99 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.42 mm6.37 mm1.02 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2527883496
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

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 6
Current: £4,223 GBP|Low: £2,152 GBP|High: £4,223 GBP|Avg: £2,680 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
November 6, 2026
Retailer 14£2,152 GBP
Retailer 11£2,189 GBP
Retailer 6£2,237 GBP
Retailer 2£2,320 GBP
Retailer 3£2,348 GBP
Retailer 4£2,424 GBP
Retailer 13£2,424 GBP
Retailer 8£2,478 GBP
Retailer 5£2,517 GBP
Retailer 15£2,531 GBP
Retailer 7£2,602 GBP
Retailer 9£2,802 GBP
Retailer 10£2,959 GBP
Retailer 12£4,043 GBP
NZ Jewellers£4,223 GBP

34 data points across 15 retailers

19 retailers£2,152 GBP to £4,223 GBP

B+
Cheapest Retailer
-
£2,152 GBP
B+
Retailer 2
-
£2,189 GBP
View
Retailer 3
-
£2,199 GBP
View
Price last confirmed 82 days ago
B+
Retailer 4
-
£2,237 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,320 GBP
View
B+
Retailer 6
-
£2,348 GBP
View
Retailer 7
-
£2,424 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£2,424 GBP
View
Retailer 9
-
£2,436 GBP
View
Price last confirmed 39 days ago
B+
Retailer 10
-
£2,478 GBP
View
B+
Retailer 11
-
£2,517 GBP
View
B+
Retailer 12
-
£2,531 GBP
View
Retailer 13
-
£2,602 GBP
View
Price last confirmed 30 days ago
B+
Retailer 14
-
£2,802 GBP
View
Retailer 15
-
£2,811 GBP
View
Price last confirmed 38 days ago
B
Retailer 16
-
£2,959 GBP
View
B
Retailer 17
-
£4,043 GBP
View
B
Retailer 18
-
£4,223 GBP
View
Most Expensive
NZ Jewellers
fc5f8c09-c67d-47d5-b4b2-19bf17c9edab · Sep 28
£4,244 GBP
$5,712 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from £2,152 GBPSave up to £2,071 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+
1.02ct Round
£2,152 GBP