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Round|Natural|GIA

0.98ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6445628055

Certificate GIA 6445628055

Diamond specifications and retailer prices

From £886 GBP
As of November 6, 2026
Save £2,041 GBP (70%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,927 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.98ct natural round diamond

This 0.98ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6445628055. Listed at 23 retailers as of November 5, 2026, with prices from £886 to £2,927, a £2,041 spread on the same certified stone. NZ Jewellers lists it at £2,927. 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

0.98
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6445628055
Dimensions6.34 × 6.29 × 3.97 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.34 mm6.29 mm0.98 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6445628055
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°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: £886 GBP|Low: £886 GBP|High: £2,127 GBP|Avg: £1,334 GBP|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 1£886 GBP
Retailer 12£894 GBP
Retailer 4£958 GBP
Retailer 13£1,096 GBP
Retailer 3£1,107 GBP
Retailer 10£1,112 GBP
Retailer 6£1,239 GBP
Retailer 2£1,259 GBP
Retailer 8£1,324 GBP
Retailer 7£1,520 GBP
Retailer 5£1,565 GBP
Retailer 9£1,757 GBP
Retailer 11£2,102 GBP

34 data points across 13 retailers

23 retailers£886 GBP to £2,927 GBP

A
Cheapest Retailer
-
£886 GBP
A
Retailer 2
-
£894 GBP
View
A
Retailer 3
-
£958 GBP
View
B+
Retailer 4
-
£1,052 GBP
View
B+
Retailer 5
-
£1,096 GBP
View
B+
Retailer 6
-
£1,107 GBP
View
Final sale: no returns
B+
Retailer 7
-
£1,112 GBP
View
B+
Retailer 8
-
£1,114 GBP
View
Retailer 9
-
£1,200 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£1,200 GBP
View
B+
Retailer 11
-
£1,239 GBP
View
B+
Retailer 12
-
£1,256 GBP
View
B+
Retailer 13
-
£1,256 GBP
View
B
Retailer 14
-
£1,259 GBP
View
B
Retailer 15
-
£1,301 GBP
View
B
Retailer 16
-
£1,324 GBP
View
B+
Retailer 17
-
£1,366 GBP
View
B+
Retailer 18
-
£1,385 GBP
View
B+
Retailer 19
-
£1,520 GBP
View
Retailer 20
-
£1,565 GBP
View
Price last confirmed 32 days ago
B
Retailer 21
-
£1,757 GBP
View
B
Retailer 22
-
£2,102 GBP
View
Most Expensive
B
NZ Jewellers
448b2a17-29f9-4b15-b4fd-6bae482cb5f9 · Nov 5
£2,927 GBP
$3,940 USD
View
22 more retailers have this diamond
Prices start from £886 GBPSave up to £2,041 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
0.98ct Round
£886 GBP