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Round|Natural|GIA

1.00ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 2537846404

Certificate GIA 2537846404

Diamond specifications and retailer prices

From £1,217 GBP
As of November 6, 2026
Save £2,068 GBP (63%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,285 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2537846404. Listed at 19 retailers as of November 5, 2026, with prices from £1,217 to £3,285, a £2,068 spread on the same certified stone. NZ Jewellers lists it at £3,285. 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
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2537846404
Dimensions6.37 × 6.33 × 4.00 mm
L/W Ratio1.01
Top View
6.37 mm6.33 mm1.00 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2537846404
Side View
Table 60.0%Crown 34°Girdle: STK-STKPavilion 41.8°Culet: NoneDepth 62.9%

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: £1,441 GBP|Low: £1,207 GBP|High: £2,785 GBP|Avg: £1,672 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7£1,217 GBP
Retailer 3£1,223 GBP
Retailer 1£1,441 GBP
Retailer 8£1,450 GBP
Retailer 4£1,463 GBP
Retailer 9£1,643 GBP
Retailer 2£1,697 GBP
Retailer 5£2,082 GBP
Retailer 6£2,752 GBP

38 data points across 9 retailers

19 retailers£1,217 GBP to £3,285 GBP

A
Cheapest Retailer
-
£1,217 GBP
A
Retailer 2
-
£1,223 GBP
View
A
Retailer 3
-
£1,395 GBP
View
A
Retailer 4
-
£1,420 GBP
View
A
Retailer 5
-
£1,441 GBP
View
A
Retailer 6
-
£1,450 GBP
View
Final sale: no returns
A
Retailer 7
-
£1,463 GBP
View
A
Retailer 8
-
£1,571 GBP
View
Retailer 9
-
£1,571 GBP
View
Price last confirmed 12 days ago
A
Retailer 10
-
£1,643 GBP
View
A
Retailer 11
-
£1,674 GBP
View
A
Retailer 12
-
£1,693 GBP
View
A
Retailer 13
-
£1,697 GBP
View
A
Retailer 14
-
£1,722 GBP
View
A
Retailer 15
-
£1,813 GBP
View
B+
Retailer 16
-
£2,082 GBP
View
B+
Retailer 17
-
£2,354 GBP
View
B+
Retailer 18
-
£2,752 GBP
View
Most Expensive
B
NZ Jewellers
7f6d7ef4-1a57-47d4-8e8b-460afe8277b9 · Nov 5
£3,285 GBP
$4,421 USD
View
18 more retailers have this diamond
Prices start from £1,217 GBPSave up to £2,068 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
£1,217 GBP