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Round|Natural|GIA

1.02ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1563620448

Certificate GIA 1563620448

Diamond specifications and retailer prices

From £1,750 GBP
As of November 6, 2026
Save £1,136 GBP (39%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,090 GBP at NZ Jewellers · As of October 30, 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 1563620448. Listed at 22 retailers as of October 31, 2026, with a 65% 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 angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1563620448
Dimensions6.36 × 6.40 × 3.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.36 mm6.40 mm1.02 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1563620448
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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 6
Current: £4,090 GBP|Low: £1,673 GBP|High: £4,090 GBP|Avg: £2,332 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
Retailer 20
Retailer 21
Retailer 22
November 3, 2026
Retailer 22£1,750 GBP
Retailer 8£1,786 GBP
Retailer 6£1,967 GBP
Retailer 18£2,040 GBP
Retailer 2£2,167 GBP
Retailer 5£2,168 GBP
Retailer 19£2,173 GBP
Retailer 10£2,268 GBP
Retailer 12£2,268 GBP
Retailer 3£2,281 GBP
Retailer 15£2,351 GBP
Retailer 11£2,355 GBP
Retailer 7£2,378 GBP
Retailer 13£2,518 GBP
Retailer 17£2,575 GBP
Retailer 14£2,611 GBP
Retailer 9£2,625 GBP
Retailer 4£2,709 GBP
Retailer 16£2,752 GBP
Retailer 21£2,783 GBP
Retailer 20£2,886 GBP
NZ Jewellers£4,090 GBP

12 data points across 22 retailers

22 retailers£1,750 GBP to £2,886 GBP

A
Cheapest Retailer
-
£1,750 GBP
Retailer 2
-
£1,786 GBP
View
Price last confirmed 7 days ago
B+
Retailer 3
-
£1,967 GBP
View
Retailer 4
-
£1,993 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£2,040 GBP
View
B+
Retailer 6
-
£2,167 GBP
View
Final sale: no returns
B+
Retailer 7
-
£2,168 GBP
View
B+
Retailer 8
-
£2,173 GBP
View
Retailer 9
-
£2,268 GBP
View
Price last confirmed 8 days ago
Retailer 10
-
£2,268 GBP
View
Price last confirmed 9 days ago
Retailer 11
-
£2,281 GBP
View
Price last confirmed 6 days ago
Retailer 12
-
£2,351 GBP
View
Price last confirmed 16 days ago
Retailer 13
-
£2,355 GBP
View
Price last confirmed 8 days ago
B+
Retailer 14
-
£2,378 GBP
View
B+
Retailer 15
-
£2,518 GBP
View
B+
Retailer 16
-
£2,575 GBP
View
B+
Retailer 17
-
£2,625 GBP
View
B
Retailer 18
-
£2,709 GBP
View
B
Retailer 19
-
£2,752 GBP
View
B
Retailer 20
-
£2,783 GBP
View
B
Retailer 21
-
£2,886 GBP
View
Most Expensive
NZ Jewellers
bc9512d4-d927-4aff-8c97-9dffd3028cd8 · Oct 30
£4,090 GBP
$5,505 USD
View
Price last confirmed 7 days ago
21 more retailers have this diamond
Prices start from £1,750 GBPSave up to £1,136 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
£1,750 GBP