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Round|Natural|GIA

1.02ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1555331569

Certificate GIA 1555331569

Diamond specifications and retailer prices

From £1,648 GBP
₹210,245 INR
As of November 1, 2026
Save £2,885 GBP (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,532 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555331569. Listed at 13 retailers as of October 30, 2026, with prices from £1,648 to £4,532, a £2,885 spread on the same certified stone. NZ Jewellers lists it at £4,532. 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 angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1555331569
Dimensions6.42 × 6.48 × 3.98 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Top View
6.42 mm6.48 mm1.02 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555331569
Side View
Table 56.0%Crown 35.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.8%

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 1
Current: £4,532 GBP|Low: £1,648 GBP|High: £4,532 GBP|Avg: £2,437 GBP|+12.7%
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
November 2, 2026
Retailer 9£1,648 GBP
Retailer 4£1,738 GBP
Retailer 5£1,786 GBP
Retailer 3£1,941 GBP
Retailer 14£1,992 GBP
Retailer 2£2,086 GBP
Retailer 12£2,120 GBP
Retailer 13£2,274 GBP
Retailer 7£2,304 GBP
Retailer 8£2,401 GBP
Retailer 6£2,646 GBP
Retailer 11£2,665 GBP
Retailer 10£3,625 GBP
NZ Jewellers£4,532 GBP

20 data points across 14 retailers

13 retailers£1,648 GBP to £4,532 GBP

A
Cheapest Retailer
-
£1,648 GBP
₹210,245 INR
A
Retailer 2
-
£1,738 GBP
$2,329 USD
View
Final sale: no returns
Retailer 3
-
£1,786 GBP
HK$18,700 HKD
View
Price last confirmed 35 days ago
A
Retailer 4
-
£1,941 GBP
$2,601 USD
View
A
Retailer 5
-
£1,992 GBP
$2,669 USD
View
A
Retailer 6
-
£2,086 GBP
View
A
Retailer 7
-
£2,120 GBP
$2,840 USD
View
B+
Retailer 8
-
£2,274 GBP
$3,047 USD
View
B+
Retailer 9
-
£2,304 GBP
View
B+
Retailer 10
-
£2,401 GBP
€3,064 EUR
View
B+
Retailer 11
-
£2,665 GBP
ZAR 57,680 ZAR
View
B
Retailer 12
-
£3,625 GBP
View
Most Expensive
B
NZ Jewellers
7cf64056-3761-44da-afd4-392c414da51f · Oct 30
£4,532 GBP
$6,073 USD
View
12 more retailers have this diamond
Prices start from £1,648 GBPSave up to £2,885 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
£1,648 GBP