Cushion|Natural|GIA

1.26ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 1555303286

Certificate GIA 1555303286

Diamond specifications and retailer prices

From £1,784 GBP

A$3,678 AUD

As of November 2, 2026

8 retailers carry this diamond

Most expensive: £3,046 GBP at MOH London · As of October 5, 2026

View at MOH London

About this 1.26ct natural cushion diamond

This 1.26ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1555303286. Listed at 8 retailers as of November 2, 2026. 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

1.26

Carat

Colour

SI1

Clarity

Very Good

Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good

PolishExcellent

SymmetryExcellent

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 1555303286

Dimensions7.11 × 5.45 × 3.93 mm

L/W Ratio1.30

Girdle conditionFaceted

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutVery Good

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 1555303286

Side View

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 2

Current: £3,046 GBP|Low: £1,299 GBP|High: £3,116 GBP|Avg: £1,835 GBP|-1.9%

MOH London

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 5, 2026

Retailer 9£1,299 GBP

Retailer 15£1,317 GBP

Retailer 5£1,329 GBP

Retailer 13£1,436 GBP

Retailer 10£1,549 GBP

Retailer 7£1,557 GBP

Retailer 11£1,575 GBP

Retailer 14£1,620 GBP

Retailer 3£1,658 GBP

Retailer 8£1,784 GBP

Retailer 12£1,841 GBP

Retailer 16£2,101 GBP

Retailer 4£2,123 GBP

Retailer 6£2,151 GBP

Retailer 2£2,655 GBP

MOH London£3,046 GBP

18 data points across 16 retailers

8 retailers

Retailer 1

£1,299 GBP

HK$13,600 HKD

Price last confirmed 24 days ago

Retailer 2

£1,329 GBP

$1,781 USD

View

Price last confirmed 27 days ago

Retailer 3

£1,620 GBP

$2,170 USD

View

Price last confirmed 28 days ago

B+

Retailer 4

£1,784 GBP

A$3,678 AUD

View

Retailer 5

£2,101 GBP

ZAR 45,483 ZAR

View

Price last confirmed 28 days ago

Retailer 6

£2,123 GBP

A$4,376 AUD

View

Price last confirmed 29 days ago

Retailer 7

£2,655 GBP

$3,557 USD

View

Price last confirmed 27 days ago

Most Expensive

MOH London

31B5E7649 · Oct 5

£3,046 GBP

View

Price last confirmed 27 days ago

7 more retailers have this diamond

Prices start from £1,784 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.

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B+

1.26ct Cushion

£1,784 GBP