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Cushion|Natural|GIA

0.80ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 1379667122

Certificate GIA 1379667122

Diamond specifications and retailer prices

From £617 GBP
As of November 4, 2026
Save £733 GBP (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,350 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.8ct natural cushion diamond

This 0.8ct natural cushion sits in the just-under-one-carat band, graded I 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 1379667122. Listed at 21 retailers as of November 2, 2026, with prices from £617 to £1,350, a £733 spread on the same certified stone. MOH London lists it at £1,350. 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

0.80
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1379667122
Dimensions5.17 × 5.05 × 3.50 mm
L/W Ratio1.02
Culet sizeNone
Top View
5.17 mm5.05 mm0.80 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1379667122
Side View
Table 60.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.3%

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 4
Current: £1,350 GBP|Low: £617 GBP|High: £1,728 GBP|Avg: £914 GBP|-21.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
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Retailer 12
Retailer 13
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Retailer 19
Retailer 20
November 6, 2026
Retailer 8£617 GBP
Retailer 17£620 GBP
Retailer 3£675 GBP
Retailer 6£682 GBP
Retailer 18£743 GBP
Retailer 5£753 GBP
Retailer 20£759 GBP
Retailer 12£779 GBP
Retailer 16£784 GBP
Retailer 9£814 GBP
Retailer 19£814 GBP
Retailer 10£844 GBP
Retailer 11£844 GBP
Retailer 14£849 GBP
Retailer 2£924 GBP
Retailer 7£1,010 GBP
Retailer 13£1,030 GBP
Retailer 4£1,041 GBP
Retailer 15£1,090 GBP
MOH London£1,350 GBP

29 data points across 20 retailers

21 retailers£617 GBP to £1,350 GBP

A
Cheapest Retailer
-
£617 GBP
A
Retailer 2
-
£620 GBP
View
A
Retailer 3
-
£675 GBP
View
A
Retailer 4
-
£682 GBP
View
B+
Retailer 5
-
£743 GBP
View
A
Retailer 6
-
£753 GBP
View
A
Retailer 7
-
£759 GBP
View
B+
Retailer 8
-
£779 GBP
View
Final sale: no returns
B+
Retailer 9
-
£784 GBP
View
A
Retailer 10
-
£814 GBP
View
B+
Retailer 11
-
£814 GBP
View
B+
Retailer 12
-
£844 GBP
View
Retailer 13
-
£844 GBP
View
Price last confirmed 22 days ago
B+
Retailer 14
-
£849 GBP
View
B+
Retailer 15
-
£924 GBP
View
B+
Retailer 16
-
£1,010 GBP
View
B+
Retailer 17
-
£1,030 GBP
View
B+
Retailer 18
-
£1,041 GBP
View
B+
Retailer 19
-
£1,090 GBP
View
Retailer 20
-
£1,219 GBP
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
46CD84685 · Nov 2
£1,350 GBP
View
20 more retailers have this diamond
Prices start from £617 GBPSave up to £733 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
0.80ct Cushion
£617 GBP