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Cushion|Natural|GIA

0.90ct I VS1 Cushion Natural Diamond

VG • I/VS1 • GIA 6541879645

Certificate GIA 6541879645

Diamond specifications and retailer prices

From £611 GBP
HK$6,400 HKD
As of October 30, 2026
Save £958 GBP (61%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,570 GBP at Flawless Fine Jewelry · As of October 29, 2026
View at Flawless Fine Jewelry

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 VS1 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541879645. Listed at 16 retailers as of October 29, 2026, with prices from £611 to £1,570, a £958 spread on the same certified stone. Flawless Fine Jewelry lists it at £1,570. 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
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle38.5°
OriginNatural
Grading LabGIA
CertificateGIA 6541879645
Dimensions6.47 × 5.17 × 3.54 mm
L/W Ratio1.25
Top View
6.47 mm5.17 mm0.90 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6541879645
Side View
Table 69.0%CrownGirdle: THN-THKPavilion 38.5°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,570 GBP|Low: £611 GBP|High: £1,615 GBP|Avg: £953 GBP|-2.8%
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 15£611 GBP
Retailer 6£640 GBP
Retailer 16£655 GBP
Retailer 7£657 GBP
Retailer 13£722 GBP
Retailer 12£731 GBP
Retailer 9£786 GBP
Retailer 4£825 GBP
Retailer 5£875 GBP
Retailer 2£925 GBP
Retailer 8£1,058 GBP
Retailer 10£1,099 GBP
Retailer 11£1,136 GBP
Retailer 3£1,265 GBP
Retailer 14£1,445 GBP
Flawless Fine Jewelry£1,570 GBP

26 data points across 16 retailers

16 retailers£611 GBP to £1,570 GBP

A
Cheapest Retailer
-
£611 GBP
HK$6,400 HKD
A
Retailer 2
-
£640 GBP
$858 USD
View
A
Retailer 3
-
£657 GBP
$880 USD
View
A
Retailer 4
-
£722 GBP
$968 USD
View
A
Retailer 5
-
£731 GBP
$980 USD
View
Retailer 6
-
£786 GBP
€1,004 EUR
View
Price last confirmed 3 days ago
A
Retailer 7
-
£825 GBP
$1,105 USD
View
A
Retailer 8
-
£875 GBP
$1,172 USD
View
A
Retailer 9
-
£925 GBP
View
Retailer 10
-
£1,058 GBP
A$2,181 AUD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
£1,091 GBP
A$2,248 AUD
View
B+
Retailer 12
-
£1,099 GBP
€1,403 EUR
View
Retailer 13
-
£1,136 GBP
ZAR 24,590 ZAR
View
Price last confirmed 11 days ago
Retailer 14
-
£1,265 GBP
$1,695 USD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
£1,445 GBP
View
Most Expensive
B+
Flawless Fine Jewelry
DBE129F34 · Oct 29
£1,570 GBP
View
15 more retailers have this diamond
Prices start from £611 GBPSave up to £958 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.

A
0.90ct Cushion
£611 GBP