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Cushion|Natural|GIA

0.90ct I SI2 Cushion Natural Diamond

VG • I/SI2 • GIA 1166717038

Certificate GIA 1166717038

Diamond specifications and retailer prices

From £953 GBP
$1,277 USD
As of October 30, 2026
Save £481 GBP (34%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,434 GBP at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1166717038. Listed at 4 retailers as of October 30, 2026, with prices from £953 to £1,434, a £481 spread on the same certified stone. 77 Diamonds lists it at £1,434. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1166717038
Dimensions5.36 × 5.34 × 3.70 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
5.36 mm5.34 mm0.90 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1166717038
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.3%

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 30
Current: £1,434 GBP|Low: £868 GBP|High: £1,612 GBP|Avg: £1,311 GBP|+2.3%
77 Diamonds
Retailer 2
Retailer 3
October 31, 2026
Retailer 2£903 GBP
77 Diamonds£1,434 GBP
Retailer 3£1,612 GBP

37 data points across 3 retailers

4 retailers£953 GBP to £1,434 GBP

Retailer 1
-
£903 GBP
$1,210 USD
Price last confirmed 10 days ago
B+
Retailer 2
-
£953 GBP
$1,277 USD
View
B+
Retailer 3
-
£972 GBP
$1,302 USD
View
Most Expensive
B
77 Diamonds
CUSZDCWE6PAF · Oct 31
£1,434 GBP
View
3 more retailers have this diamond
Prices start from £953 GBPSave up to £481 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 Cushion
£953 GBP