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Cushion|Natural|GIA

1.28ct J VS1 Cushion Natural Diamond

VG • J/VS1 • GIA 1547988635

Certificate GIA 1547988635

Diamond specifications and retailer prices

From £2,461 GBP
As of November 4, 2026
Save £169 GBP (6%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,630 GBP at Seattle Diamonds · As of November 6, 2026
View at Seattle Diamonds

About this 1.28ct natural cushion diamond

This 1.28ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded J 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 1547988635. Listed at 4 retailers as of November 4, 2026, with a relatively tight 7% 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

1.28
Carat
J
Colour
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1547988635
Dimensions9.19 × 6.24 × 2.40 mm
L/W Ratio1.47
Culet sizeVery Large
Top View
9.19 mm6.24 mm1.28 ctJ / VS1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceStrong
CertificateGIA 1547988635
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: Very LargeDepth

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: Nov 4
Current: £2,462 GBP|Low: £1,059 GBP|High: £4,792 GBP|Avg: £2,648 GBP|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Seattle Diamonds
September 23, 2026
Retailer 5£1,059 GBP
Retailer 4£1,719 GBP
Retailer 6£1,993 GBP
Retailer 3£2,461 GBP
Retailer 1£2,462 GBP
Retailer 2£2,522 GBP
Seattle Diamonds£2,630 GBP
Retailer 8£2,719 GBP
Retailer 7£4,792 GBP

14 data points across 9 retailers

4 retailers£2,461 GBP to £2,630 GBP

B+
Cheapest Retailer
-
£2,461 GBP
B+
Retailer 2
-
£2,462 GBP
View
B+
Retailer 3
-
£2,522 GBP
View
Most Expensive
B
Seattle Diamonds
182784449 · Nov 6
£2,630 GBP
$3,520 USD
View
3 more retailers have this diamond
Prices start from £2,461 GBPSave up to £169 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+
1.28ct Cushion
£2,461 GBP