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0.99ct J SI1 Round Natural Diamond

FR • J/SI1 • GIA 2161528228

Certificate GIA 2161528228

Diamond specifications and retailer prices

From £1,256 GBP
As of November 4, 2026
Save £702 GBP (36%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,958 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 0.99ct natural round diamond

This 0.99ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 2161528228. Listed at 2 retailers as of November 4, 2026, with prices from £1,256 to £1,958, a £702 spread on the same certified stone. Yorxs lists it at £1,958. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.99
Carat
J
Colour
SI1
Clarity
Fair
Cut

Specifications

CutFair
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2161528228
Dimensions6.61 × 6.64 × 3.80 mm
L/W Ratio1.00
Top View
6.61 mm6.64 mm0.99 ctJ / SI1
OriginNatural
CutFair
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 2161528228
Side View
Table 70.0%CrownGirdlePavilionCuletDepth 57.4%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 4
Current: £1,256 GBP|Low: £1,256 GBP|High: £1,968 GBP|Avg: £1,544 GBP
Retailer 1
Retailer 2
Yorxs
November 6, 2026
Retailer 1£1,256 GBP
Retailer 2£1,422 GBP
Yorxs£1,958 GBP

11 data points across 3 retailers

2 retailers£1,256 GBP to £1,958 GBP

C
Cheapest Retailer
-
£1,256 GBP
Most Expensive
C
Yorxs
RB44387 · Nov 6
£1,958 GBP
€2,510 EUR
View
1 more retailer has this diamond
Prices start from £1,256 GBPSave up to £702 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.

C
0.99ct Round
£1,256 GBP