Round|Natural|GIA

1.02ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2564016528

Certificate GIA 2564016528

Diamond specifications and retailer prices

From £2,288 GBP
A$4,688 AUD
As of October 29, 2026
Save £2,326 GBP (50%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,781 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564016528. Listed at 22 retailers as of October 29, 2026, with a 102% 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2564016528
Dimensions6.39 × 6.43 × 4.04 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.39 mm6.43 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2564016528
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.0%

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: Oct 29
Current: £2,851 GBP|Low: £1,982 GBP|High: £4,644 GBP|Avg: £2,947 GBP|+2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 8£2,436 GBP
Retailer 5£2,533 GBP
Retailer 7£2,606 GBP
Retailer 9£2,745 GBP
Retailer 1£2,851 GBP
Retailer 6£2,940 GBP
Retailer 3£3,022 GBP
Retailer 4£3,342 GBP
Retailer 2£4,614 GBP

43 data points across 9 retailers

22 retailers£2,288 GBP to £4,614 GBP

A
Cheapest Retailer
-
£2,288 GBP
A$4,688 AUD
B+
Retailer 2
-
£2,436 GBP
$3,244 USD
View
B+
Retailer 3
-
£2,533 GBP
$3,373 USD
View
Final sale: no returns
B+
Retailer 4
-
£2,606 GBP
A$5,338 AUD
View
B+
Retailer 5
-
£2,636 GBP
$3,510 USD
View
Retailer 6
-
£2,745 GBP
$3,655 USD
View
Price last confirmed 53 days ago
Retailer 7
-
£2,745 GBP
$3,655 USD
View
Price last confirmed 42 days ago
Retailer 8
-
£2,745 GBP
$3,655 USD
View
Price last confirmed 29 days ago
Retailer 9
-
£2,745 GBP
$3,655 USD
View
Price last confirmed 14 days ago
Retailer 10
-
£2,850 GBP
$3,795 USD
View
Price last confirmed 31 days ago
B+
Retailer 11
-
£2,851 GBP
View
B+
Retailer 12
-
£2,854 GBP
$3,800 USD
View
Retailer 13
-
£2,940 GBP
A$6,023 AUD
View
Price last confirmed 21 days ago
B+
Retailer 14
-
£3,022 GBP
€3,833 EUR
View
Retailer 15
-
£3,167 GBP
$4,217 USD
View
Price last confirmed 53 days ago
Retailer 16
-
£3,167 GBP
$4,217 USD
View
Price last confirmed 43 days ago
Retailer 17
-
£3,167 GBP
$4,217 USD
View
Price last confirmed 31 days ago
B+
Retailer 18
-
£3,342 GBP
ZAR 71,893 ZAR
View
B
Retailer 19
-
£4,614 GBP
View
Retailer 20
-
£4,781 GBP
$6,367 USD
View
Price last confirmed 42 days ago
Retailer 21
-
£4,781 GBP
$6,367 USD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
fd0aff89-c771-45ef-8c4c-eca964b0d79d · Sep 28
£4,781 GBP
$6,367 USD
View
Price last confirmed 32 days ago
21 more retailers have this diamond
Prices start from £2,288 GBPSave up to £2,326 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
£2,288 GBP