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Cushion|Natural|GIA

0.91ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 2198315901

Certificate GIA 2198315901

Diamond specifications and retailer prices

From £1,406 GBP
$1,884 USD
As of October 31, 2026
Save £796 GBP (36%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,202 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.91ct natural cushion diamond

This 0.91ct natural cushion 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 2198315901. Listed at 11 retailers as of October 31, 2026, with prices from £1,406 to £2,202, a £796 spread on the same certified stone. 77 Diamonds lists it at £2,202. 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
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2198315901
Dimensions5.85 × 5.42 × 3.62 mm
L/W Ratio1.08
Culet sizeNone
Top View
5.85 mm5.42 mm0.91 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2198315901
Side View
Table 63.0%CrownGirdle: THN-ETKPavilionCulet: NoneDepth 66.8%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £2,202 GBP|Low: £1,406 GBP|High: £2,202 GBP|Avg: £1,711 GBP|+2.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2£1,406 GBP
Retailer 6£1,443 GBP
Retailer 4£1,455 GBP
Retailer 7£1,555 GBP
Retailer 3£1,755 GBP
Retailer 5£1,954 GBP
77 Diamonds£2,202 GBP

30 data points across 7 retailers

11 retailers£1,406 GBP to £2,202 GBP

B
Cheapest Retailer
-
£1,406 GBP
$1,884 USD
B
Retailer 2
-
£1,443 GBP
$1,933 USD
View
B
Retailer 3
-
£1,455 GBP
$1,949 USD
View
B+
Retailer 4
-
£1,503 GBP
A$3,098 AUD
View
B
Retailer 5
-
£1,555 GBP
$2,084 USD
View
B
Retailer 6
-
£1,755 GBP
$2,352 USD
View
B
Retailer 7
-
£1,858 GBP
$2,490 USD
View
B
Retailer 8
-
£1,858 GBP
$2,490 USD
View
B
Retailer 9
-
£1,918 GBP
$2,570 USD
View
B
Retailer 10
-
£1,954 GBP
A$4,028 AUD
View
Most Expensive
B
77 Diamonds
CUSZQHZAGSKT · Nov 1
£2,202 GBP
View
10 more retailers have this diamond
Prices start from £1,406 GBPSave up to £796 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 Cushion
£1,406 GBP