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Cushion|Natural|GIA

1.25ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 6551482221

Certificate GIA 6551482221

Diamond specifications and retailer prices

From £1,688 GBP
As of November 6, 2026
Save £1,507 GBP (47%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,195 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.25ct natural cushion diamond

This 1.25ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551482221. Listed at 5 retailers as of November 4, 2026, with prices from £1,688 to £3,195, a £1,507 spread on the same certified stone. MOH London lists it at £3,195. 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

1.25
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551482221
Dimensions6.00 × 5.90 × 4.11 mm
L/W Ratio1.02
Key to symbols
Crystal, Needle, Feather
Top View
6.00 mm5.90 mm1.25 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551482221
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.7%

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: Nov 6
Current: £3,195 GBP|Low: £1,486 GBP|High: £3,653 GBP|Avg: £2,473 GBP|-12.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£1,688 GBP
Retailer 3£1,821 GBP
Retailer 2£2,269 GBP
Retailer 5£3,033 GBP
MOH London£3,195 GBP

25 data points across 5 retailers

5 retailers£1,688 GBP to £3,195 GBP

A
Cheapest Retailer
-
£1,688 GBP
Final sale: no returns
A
Retailer 2
-
£1,821 GBP
View
A
Retailer 3
-
£2,269 GBP
View
B
Retailer 4
-
£3,033 GBP
View
Most Expensive
B
MOH London
520375BB5 · Nov 4
£3,195 GBP
View
4 more retailers have this diamond
Prices start from £1,688 GBPSave up to £1,507 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
1.25ct Cushion
£1,688 GBP