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Round|Natural|GIA

0.98ct J SI1 Round Natural Diamond

ID • J/SI1 • GIA 9

Certificate GIA 9

Diamond specifications and retailer prices

From £1,499 GBP
As of November 6, 2026
Save £352 GBP (19%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,851 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

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. Listed at 3 retailers as of November 5, 2026, with prices from £1,499 to £1,851, a £352 spread on the same certified stone. Blue Nile lists it at £1,851. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 9
Dimensions6.36 × 6.40 × 3.86 mm
L/W Ratio1.01
Top View
6.36 mm6.40 mm0.98 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 9
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £1,851 GBP|Low: £1,499 GBP|High: £1,916 GBP|Avg: £1,667 GBP|-3.4%
Blue Nile
Retailer 2
Retailer 3
October 10, 2026
Retailer 3£1,499 GBP
Retailer 2£1,596 GBP
Blue Nile£1,851 GBP

4 data points across 3 retailers

3 retailers£1,499 GBP to £1,851 GBP

B+
Cheapest Retailer
-
£1,499 GBP
B
Retailer 2
-
£1,596 GBP
View
Most Expensive
B
Blue Nile
24290876 · Nov 5
£1,851 GBP
$2,491 USD
View
2 more retailers have this diamond
Prices start from £1,499 GBPSave up to £352 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+
0.98ct Round
£1,499 GBP