Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6552716380

Certificate GIA 6552716380

Diamond specifications and retailer prices

From £1,474 GBP
As of November 6, 2026
Save £2,614 GBP (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,088 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552716380. Listed at 19 retailers as of November 5, 2026, with prices from £1,474 to £4,088, a £2,614 spread on the same certified stone. NZ Jewellers lists it at £4,088. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552716380
Dimensions6.34 × 6.37 × 3.99 mm
L/W Ratio1.00
Top View
6.34 mm6.37 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552716380
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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 6
Current: £1,479 GBP|Low: £1,474 GBP|High: £3,466 GBP|Avg: £2,158 GBP|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7£1,474 GBP
Retailer 1£1,479 GBP
Retailer 8£1,860 GBP
Retailer 3£1,869 GBP
Retailer 9£1,932 GBP
Retailer 2£2,057 GBP
Retailer 5£2,305 GBP
Retailer 4£2,386 GBP
Retailer 6£3,416 GBP

28 data points across 9 retailers

19 retailers£1,474 GBP to £4,088 GBP

A
Cheapest Retailer
-
£1,474 GBP
A
Retailer 2
-
£1,479 GBP
View
A
Retailer 3
-
£1,750 GBP
View
A
Retailer 4
-
£1,860 GBP
View
A
Retailer 5
-
£1,869 GBP
View
B+
Retailer 6
-
£1,932 GBP
View
B+
Retailer 7
-
£1,955 GBP
View
Retailer 8
-
£1,955 GBP
View
Price last confirmed 21 days ago
B+
Retailer 9
-
£2,031 GBP
View
Retailer 10
-
£2,054 GBP
View
Price last confirmed 10 days ago
B+
Retailer 11
-
£2,057 GBP
View
B+
Retailer 12
-
£2,060 GBP
View
Retailer 13
-
£2,190 GBP
View
Price last confirmed 30 days ago
B+
Retailer 14
-
£2,256 GBP
View
B+
Retailer 15
-
£2,305 GBP
View
B+
Retailer 16
-
£2,386 GBP
View
B+
Retailer 17
-
£2,858 GBP
View
B
Retailer 18
-
£3,416 GBP
View
Most Expensive
B
NZ Jewellers
e0daf7e4-16cd-4523-a1cd-46ed338097d3 · Nov 5
£4,088 GBP
$5,502 USD
View
18 more retailers have this diamond
Prices start from £1,474 GBPSave up to £2,614 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
£1,474 GBP