CaratHunter
Plans
Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 2507498430

Certificate GIA 2507498430

Diamond specifications and retailer prices

From £1,667 GBP
As of November 6, 2026
Save £1,654 GBP (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,321 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded I 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 2507498430. Listed at 16 retailers as of November 4, 2026, with prices from £1,667 to £3,321, a £1,654 spread on the same certified stone. MOH London lists it at £3,321. 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

1.00
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2507498430
Dimensions7.31 × 5.34 × 3.57 mm
L/W Ratio1.37
Top View
7.31 mm5.34 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2507498430
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.9%

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 6
Current: £3,321 GBP|Low: £1,424 GBP|High: £3,370 GBP|Avg: £2,042 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 10£1,428 GBP
Retailer 12£1,717 GBP
Retailer 7£1,737 GBP
Retailer 3£1,753 GBP
Retailer 11£1,775 GBP
Retailer 6£1,850 GBP
Retailer 9£1,901 GBP
Retailer 5£2,010 GBP
Retailer 4£2,129 GBP
Retailer 2£2,319 GBP
Retailer 8£2,363 GBP
MOH London£3,321 GBP

32 data points across 12 retailers

16 retailers£1,667 GBP to £3,321 GBP

Retailer 1
-
£1,428 GBP
Price last confirmed 15 days ago
Retailer 2
-
£1,554 GBP
View
Price last confirmed 15 days ago
B
Retailer 3
-
£1,667 GBP
View
B
Retailer 4
-
£1,717 GBP
View
B
Retailer 5
-
£1,737 GBP
View
B
Retailer 6
-
£1,753 GBP
View
Final sale: no returns
B
Retailer 7
-
£1,775 GBP
View
B
Retailer 8
-
£1,850 GBP
View
B
Retailer 9
-
£1,883 GBP
View
Retailer 10
-
£1,901 GBP
View
Price last confirmed 13 days ago
B
Retailer 11
-
£2,005 GBP
View
B
Retailer 12
-
£2,010 GBP
View
Retailer 13
-
£2,129 GBP
View
Price last confirmed 31 days ago
B
Retailer 14
-
£2,319 GBP
View
B
Retailer 15
-
£2,363 GBP
View
Most Expensive
C
MOH London
D7535BEB9 · Nov 4
£3,321 GBP
View
15 more retailers have this diamond
Prices start from £1,667 GBPSave up to £1,654 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
1.00ct Cushion
£1,667 GBP