CaratHunter
Plans
Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 6381887861

Certificate GIA 6381887861

Diamond specifications and retailer prices

From £1,702 GBP
As of November 6, 2026
Save £1,884 GBP (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,586 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 J 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 6381887861. Listed at 22 retailers as of November 4, 2026, with prices from £1,702 to £3,586, a £1,884 spread on the same certified stone. MOH London lists it at £3,586. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6381887861
Dimensions6.27 × 5.44 × 3.71 mm
L/W Ratio1.15
Top View
6.27 mm5.44 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6381887861
Side View
Table 60.0%CrownGirdle: VTN-STKPavilionCulet: NoneDepth 68.2%

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: £3,586 GBP|Low: £1,498 GBP|High: £3,639 GBP|Avg: £2,231 GBP|-0.3%
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 11£1,702 GBP
Retailer 8£1,718 GBP
Retailer 6£1,798 GBP
Retailer 3£1,924 GBP
Retailer 9£1,948 GBP
Retailer 10£2,115 GBP
Retailer 4£2,262 GBP
Retailer 7£2,409 GBP
Retailer 2£2,514 GBP
Retailer 5£2,624 GBP
MOH London£3,586 GBP

45 data points across 11 retailers

22 retailers£1,702 GBP to £3,586 GBP

B
Cheapest Retailer
-
£1,702 GBP
Retailer 2
-
£1,718 GBP
View
Price last confirmed 10 days ago
B
Retailer 3
-
£1,745 GBP
View
B
Retailer 4
-
£1,751 GBP
View
B
Retailer 5
-
£1,798 GBP
View
Final sale: no returns
B
Retailer 6
-
£1,808 GBP
View
B
Retailer 7
-
£1,830 GBP
View
B
Retailer 8
-
£1,837 GBP
View
B
Retailer 9
-
£1,924 GBP
View
Retailer 10
-
£1,948 GBP
View
Price last confirmed 9 days ago
B
Retailer 11
-
£2,113 GBP
View
B
Retailer 12
-
£2,115 GBP
View
B
Retailer 13
-
£2,129 GBP
View
C
Retailer 14
-
£2,226 GBP
View
C
Retailer 15
-
£2,226 GBP
View
B
Retailer 16
-
£2,262 GBP
View
C
Retailer 17
-
£2,301 GBP
View
Retailer 18
-
£2,409 GBP
View
Price last confirmed 31 days ago
Retailer 19
-
£2,497 GBP
View
Price last confirmed 15 days ago
C
Retailer 20
-
£2,514 GBP
View
C
Retailer 21
-
£2,624 GBP
View
Most Expensive
C
MOH London
1B61C6405 · Nov 4
£3,586 GBP
View
21 more retailers have this diamond
Prices start from £1,702 GBPSave up to £1,884 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
£1,702 GBP