CaratHunter
Plans
Round|Natural|GIA

1.00ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7361299633

Certificate GIA 7361299633

Diamond specifications and retailer prices

From £1,432 GBP
As of November 6, 2026
Save £2,357 GBP (62%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £3,789 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7361299633. Listed at 24 retailers as of November 5, 2026, with prices from £1,432 to £3,789, a £2,357 spread on the same certified stone. NZ Jewellers lists it at £3,789. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7361299633
Dimensions6.37 × 6.34 × 3.94 mm
L/W Ratio1.00
Top View
6.37 mm6.34 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7361299633
Side View
Table 61.0%Crown 35.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,907 GBP|Low: £1,304 GBP|High: £3,213 GBP|Avg: £2,075 GBP|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10£1,516 GBP
Retailer 9£1,523 GBP
Retailer 3£1,718 GBP
Retailer 8£1,778 GBP
Retailer 1£1,907 GBP
Retailer 4£2,099 GBP
Retailer 5£2,105 GBP
Retailer 6£2,212 GBP
Retailer 11£2,231 GBP
Retailer 2£2,607 GBP
Retailer 7£3,167 GBP

41 data points across 11 retailers

24 retailers£1,432 GBP to £3,789 GBP

B+
Cheapest Retailer
-
£1,432 GBP
B+
Retailer 2
-
£1,482 GBP
View
B+
Retailer 3
-
£1,483 GBP
View
B+
Retailer 4
-
£1,507 GBP
View
B+
Retailer 5
-
£1,516 GBP
View
Final sale: no returns
B+
Retailer 6
-
£1,523 GBP
View
B+
Retailer 7
-
£1,546 GBP
View
B+
Retailer 8
-
£1,584 GBP
View
Retailer 9
-
£1,642 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£1,642 GBP
View
B+
Retailer 11
-
£1,653 GBP
View
B+
Retailer 12
-
£1,718 GBP
View
B
Retailer 13
-
£1,778 GBP
View
B
Retailer 14
-
£1,791 GBP
View
B
Retailer 15
-
£1,895 GBP
View
B+
Retailer 16
-
£1,907 GBP
View
B
Retailer 17
-
£2,095 GBP
View
B
Retailer 18
-
£2,099 GBP
View
B
Retailer 19
-
£2,105 GBP
View
B
Retailer 20
-
£2,212 GBP
View
Retailer 21
-
£2,231 GBP
View
Price last confirmed 30 days ago
B
Retailer 22
-
£2,607 GBP
View
B
Retailer 23
-
£3,167 GBP
View
Most Expensive
B
NZ Jewellers
06bb5a5e-1e19-4d5d-9736-dc067e22ac14 · Nov 5
£3,789 GBP
$5,100 USD
View
23 more retailers have this diamond
Prices start from £1,432 GBPSave up to £2,357 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.

B+
1.00ct Round
£1,432 GBP