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Radiant|Natural|GIA

0.90ct I SI1 Radiant Natural Diamond

I/SI1 • GIA 2145749631

Certificate GIA 2145749631

Diamond specifications and retailer prices

From £1,780 GBP
$2,389 USD
As of October 31, 2026
Save £165 GBP (8%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,945 GBP at Jared · As of November 2, 2026
View at Jared

About this 0.9ct natural radiant diamond

This 0.9ct natural radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA 2145749631. Listed at 4 retailers as of October 31, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.90
Carat
I
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2145749631
Dimensions5.44 × 4.95 mm
L/W Ratio1.10
Top View
5.44 mm4.95 mm0.90 ctI / SI1
OriginNatural
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2145749631
Side View
Table 66.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 73.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,945 GBP|Low: £1,602 GBP|High: £2,094 GBP|Avg: £1,845 GBP|-7.1%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
September 26, 2026
Retailer 5£1,602 GBP
Retailer 2£1,780 GBP
Retailer 3£1,878 GBP
Retailer 4£1,878 GBP
Jared£1,945 GBP

7 data points across 5 retailers

4 retailers£1,780 GBP to £1,945 GBP

B
Cheapest Retailer
-
£1,780 GBP
$2,389 USD
C
Retailer 2
-
£1,878 GBP
$2,520 USD
View
C
Retailer 3
-
£1,878 GBP
$2,520 USD
View
Most Expensive
C
Jared
120276588 · Nov 2
£1,945 GBP
$2,610 USD
View
3 more retailers have this diamond
Prices start from £1,780 GBPSave up to £165 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
0.90ct Radiant
£1,780 GBP