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Cushion|Natural|GIA

1.23ct H SI2 Cushion Natural Diamond

VG • H/SI2 • GIA 2183896578

Certificate GIA 2183896578

Diamond specifications and retailer prices

From £2,645 GBP
As of November 5, 2026
Save £1,616 GBP (38%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £4,261 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural cushion diamond

This 1.23ct natural cushion sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2183896578. Listed at 4 retailers as of November 4, 2026, with prices from £2,645 to £4,261, a £1,616 spread on the same certified stone. MOH London lists it at £4,261. 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

1.23
Carat
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2183896578
Dimensions6.53 × 5.75 × 4.07 mm
L/W Ratio1.14
Girdle conditionFaceted
Key to symbols
Cloud, Crystal, Feather, Needle, Natural
Top View
6.53 mm5.75 mm1.23 ctH / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2183896578
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £4,261 GBP|Low: £2,589 GBP|High: £4,324 GBP|Avg: £3,244 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3£2,645 GBP
Retailer 2£2,805 GBP
MOH London£4,261 GBP

40 data points across 3 retailers

4 retailers£2,645 GBP to £4,261 GBP

B
Cheapest Retailer
-
£2,645 GBP
B
Retailer 2
-
£2,805 GBP
View
B
Retailer 3
-
£2,900 GBP
View
Most Expensive
C
MOH London
96E67D7E3 · Nov 4
£4,261 GBP
View
3 more retailers have this diamond
Prices start from £2,645 GBPSave up to £1,616 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
1.23ct Cushion
£2,645 GBP