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Cushion|Natural|GIA

1.25ct H SI2 Cushion Natural Diamond

ID • H/SI2 • GIA 6551683125

Certificate GIA 6551683125

Diamond specifications and retailer prices

From £1,249 GBP
As of November 6, 2026
Save £1,195 GBP (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,444 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551683125. Listed at 12 retailers as of November 4, 2026, with prices from £1,249 to £2,444, a £1,195 spread on the same certified stone. MOH London lists it at £2,444. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.25
Carat
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.16°
Pavilion angle33.88°
OriginNatural
Grading LabGIA
CertificateGIA 6551683125
Dimensions5.97 × 6.12 × 4.01 mm
L/W Ratio1.03
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
5.97 mm6.12 mm1.25 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551683125
Side View
Table 63.0%Crown 37.16°Girdle: Very ThickPavilion 33.88°Culet: NoneDepth 67.1%

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: £2,444 GBP|Low: £1,219 GBP|High: £2,555 GBP|Avg: £1,690 GBP|-4.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 4£1,249 GBP
Retailer 2£1,265 GBP
Retailer 6£1,348 GBP
Retailer 11£1,405 GBP
Retailer 3£1,441 GBP
Retailer 8£1,473 GBP
Retailer 9£1,511 GBP
Retailer 10£1,518 GBP
Retailer 5£1,792 GBP
Retailer 7£1,862 GBP
MOH London£2,444 GBP

35 data points across 11 retailers

12 retailers£1,249 GBP to £2,444 GBP

A
Cheapest Retailer
-
£1,249 GBP
A
Retailer 2
-
£1,265 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,348 GBP
View
A
Retailer 4
-
£1,405 GBP
View
Retailer 5
-
£1,441 GBP
View
Price last confirmed 9 days ago
A
Retailer 6
-
£1,441 GBP
View
A
Retailer 7
-
£1,473 GBP
View
A
Retailer 8
-
£1,511 GBP
View
A
Retailer 9
-
£1,518 GBP
View
A
Retailer 10
-
£1,792 GBP
View
A
Retailer 11
-
£1,862 GBP
View
Most Expensive
B+
MOH London
EAE7C8D04 · Nov 4
£2,444 GBP
View
11 more retailers have this diamond
Prices start from £1,249 GBPSave up to £1,195 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
£1,249 GBP