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Radiant|Natural|GIA

0.91ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 6203543404

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate GIA 6203543404

Diamond specifications and retailer prices

From £1,785 GBP
$2,396 USD
As of October 31, 2026
Save £885 GBP (33%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,670 GBP at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 0.91ct natural radiant diamond

This 0.91ct natural radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6203543404. Listed at 11 retailers as of October 31, 2026, with prices from £1,785 to £2,670, a £885 spread on the same certified stone. The Diamond Guys lists it at £2,670. 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

0.91
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6203543404
Dimensions6.22 × 4.71 × 3.28 mm
L/W Ratio1.32
Top View
6.22 mm4.71 mm0.91 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6203543404
Side View
Table 64.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 69.8%

Caratlytics Score

How it works →
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: £2,559 GBP|Low: £1,785 GBP|High: £2,670 GBP|Avg: £2,201 GBP|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
The Diamond Guys
November 2, 2026
Retailer 6£1,785 GBP
Retailer 3£1,822 GBP
Retailer 5£1,827 GBP
Retailer 2£1,864 GBP
Retailer 10£2,153 GBP
Retailer 4£2,281 GBP
Retailer 7£2,400 GBP
Retailer 8£2,400 GBP
Retailer 9£2,481 GBP
Retailer 1£2,559 GBP
The Diamond Guys£2,670 GBP

20 data points across 11 retailers

11 retailers£1,785 GBP to £2,670 GBP

B
Cheapest Retailer
-
£1,785 GBP
$2,396 USD
B
Retailer 2
-
£1,822 GBP
$2,445 USD
View
B
Retailer 3
-
£1,827 GBP
$2,452 USD
View
B
Retailer 4
-
£1,864 GBP
$2,502 USD
View
B
Retailer 5
-
£2,153 GBP
CA$4,012 CAD
View
B
Retailer 6
-
£2,281 GBP
$3,061 USD
View
B
Retailer 7
-
£2,400 GBP
$3,220 USD
View
B
Retailer 8
-
£2,400 GBP
$3,220 USD
View
B
Retailer 9
-
£2,481 GBP
$3,330 USD
View
B
Retailer 10
-
£2,559 GBP
€3,271 EUR
View
Most Expensive
C
The Diamond Guys
1947493463 · Nov 2
£2,670 GBP
$3,583 USD
View
10 more retailers have this diamond
Prices start from £1,785 GBPSave up to £885 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
0.91ct Radiant
£1,785 GBP