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Round|Natural|GIA

1.00ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2567386401

Certificate GIA 2567386401

Diamond specifications and retailer prices

From £1,874 GBP
As of November 6, 2026
Save £2,467 GBP (57%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £4,341 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 2567386401. Listed at 24 retailers as of November 5, 2026, with prices from £1,874 to £4,341, a £2,467 spread on the same certified stone. NZ Jewellers lists it at £4,341. 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

1.00
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2567386401
Dimensions6.46 × 6.51 × 3.86 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Pinpoint, Indented Natural
Top View
6.46 mm6.51 mm1.00 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2567386401
Side View
Table 61.0%Crown 32.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 59.6%

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: £4,341 GBP|Low: £1,874 GBP|High: £4,341 GBP|Avg: £2,864 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
November 6, 2026
Retailer 17£1,874 GBP
Retailer 2£1,948 GBP
Retailer 9£2,275 GBP
Retailer 3£2,305 GBP
Retailer 15£2,354 GBP
Retailer 10£2,384 GBP
Retailer 5£2,492 GBP
Retailer 7£2,492 GBP
Retailer 12£2,547 GBP
Retailer 6£2,587 GBP
Retailer 11£2,611 GBP
Retailer 8£2,875 GBP
Retailer 13£2,900 GBP
Retailer 14£3,041 GBP
Retailer 4£4,056 GBP
Retailer 16£4,166 GBP
NZ Jewellers£4,341 GBP

22 data points across 17 retailers

24 retailers£1,874 GBP to £4,341 GBP

A
Cheapest Retailer
-
£1,874 GBP
A
Retailer 2
-
£1,948 GBP
View
B+
Retailer 3
-
£2,230 GBP
View
B+
Retailer 4
-
£2,264 GBP
View
B+
Retailer 5
-
£2,275 GBP
View
B+
Retailer 6
-
£2,300 GBP
View
Final sale: no returns
B+
Retailer 7
-
£2,305 GBP
View
B+
Retailer 8
-
£2,305 GBP
View
B+
Retailer 9
-
£2,354 GBP
View
B+
Retailer 10
-
£2,384 GBP
View
B+
Retailer 11
-
£2,492 GBP
View
Retailer 12
-
£2,492 GBP
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£2,510 GBP
View
B+
Retailer 14
-
£2,547 GBP
View
B+
Retailer 15
-
£2,587 GBP
View
B+
Retailer 16
-
£2,598 GBP
View
B+
Retailer 17
-
£2,611 GBP
View
Retailer 18
-
£2,671 GBP
View
Price last confirmed 33 days ago
B+
Retailer 19
-
£2,875 GBP
View
B+
Retailer 20
-
£2,900 GBP
View
B+
Retailer 21
-
£3,041 GBP
View
Retailer 22
-
£4,056 GBP
View
Price last confirmed 9 days ago
B
Retailer 23
-
£4,166 GBP
View
Most Expensive
B
NZ Jewellers
ae5a5c0c-0bba-4116-9fc5-29900e583efa · Nov 5
£4,341 GBP
$5,810 USD
View
23 more retailers have this diamond
Prices start from £1,874 GBPSave up to £2,467 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
1.00ct Round
£1,874 GBP