Round|Natural|GIA

1.02ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1565225898

Certificate GIA 1565225898

Diamond specifications and retailer prices

From £2,135 GBP
SGD 3,872 SGD
As of October 31, 2026
Save £124 GBP (5%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,256 GBP at NZ Jewellers · As of October 17, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565225898. Listed at 20 retailers as of October 31, 2026, with a relatively tight 6% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1565225898
Dimensions6.39 × 6.42 × 4.03 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud
Top View
6.39 mm6.42 mm1.02 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565225898
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.9%

Caratlytics Score

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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: Oct 31
Current: £4,256 GBP|Low: £1,929 GBP|High: £4,256 GBP|Avg: £2,779 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
October 19, 2026
Retailer 9£1,929 GBP
Retailer 16£2,135 GBP
Retailer 10£2,232 GBP
Retailer 6£2,254 GBP
Retailer 8£2,379 GBP
Retailer 3£2,443 GBP
Retailer 4£2,443 GBP
Retailer 2£2,518 GBP
Retailer 15£2,537 GBP
Retailer 7£2,610 GBP
Retailer 5£2,819 GBP
Retailer 12£2,846 GBP
Retailer 13£2,965 GBP
Retailer 14£4,013 GBP
Retailer 11£4,107 GBP
NZ Jewellers£4,256 GBP

24 data points across 16 retailers

20 retailers£2,135 GBP to £2,259 GBP

Retailer 1
-
£1,822 GBP
HK$19,100 HKD
Price last confirmed 16 days ago
Retailer 2
-
£1,929 GBP
₹246,551 INR
View
Price last confirmed 15 days ago
A
Retailer 3
-
£2,135 GBP
SGD 3,872 SGD
View
Retailer 4
-
£2,189 GBP
$2,937 USD
View
Price last confirmed 18 days ago
Retailer 5
-
£2,232 GBP
$2,995 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
£2,259 GBP
$3,032 USD
View
Retailer 7
-
£2,262 GBP
$3,035 USD
View
Price last confirmed 13 days ago
Retailer 8
-
£2,379 GBP
View
Price last confirmed 33 days ago
Retailer 9
-
£2,443 GBP
$3,278 USD
View
Price last confirmed 15 days ago
Retailer 10
-
£2,443 GBP
$3,278 USD
View
Price last confirmed 17 days ago
Retailer 11
-
£2,518 GBP
View
Price last confirmed 14 days ago
Retailer 12
-
£2,537 GBP
$3,404 USD
View
Price last confirmed 18 days ago
Retailer 13
-
£2,550 GBP
$3,422 USD
View
Price last confirmed 15 days ago
Retailer 14
-
£2,561 GBP
SGD 4,645 SGD
View
Price last confirmed 14 days ago
Retailer 15
-
£2,610 GBP
A$5,388 AUD
View
Price last confirmed 25 days ago
Retailer 16
-
£2,819 GBP
$3,783 USD
View
Price last confirmed 15 days ago
Retailer 17
-
£2,965 GBP
ZAR 64,287 ZAR
View
Price last confirmed 16 days ago
Retailer 18
-
£4,013 GBP
View
Price last confirmed 14 days ago
Retailer 19
-
£4,107 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
1e7cfced-9aa3-4647-8a18-454f3ee30599 · Oct 17
£4,256 GBP
$5,711 USD
View
Price last confirmed 16 days ago
19 more retailers have this diamond
Prices start from £2,135 GBPSave up to £124 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
£2,135 GBP