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Cushion|Natural|GIA

1.00ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 1379930764

Certificate GIA 1379930764

Diamond specifications and retailer prices

From £1,817 GBP
As of November 4, 2026
Save £796 GBP (30%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,613 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded G 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 1379930764. Listed at 16 retailers as of November 4, 2026, with prices from £1,817 to £2,613, a £796 spread on the same certified stone. Yorxs lists it at £2,613. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1379930764
Dimensions6.06 × 5.18 × 3.71 mm
L/W Ratio1.17
Key to symbols
Cloud, Feather, Crystal, Indented Natural
Top View
6.06 mm5.18 mm1.00 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1379930764
Side View
Table 68.0%CrownGirdle: - VPavilionCulet: NoneDepth 71.7%

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 4
Current: £2,029 GBP|Low: £1,779 GBP|High: £2,619 GBP|Avg: £2,109 GBP|+0.1%
Retailer 1
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
Yorxs
November 6, 2026
Retailer 8£1,797 GBP
Retailer 12£1,817 GBP
Retailer 13£1,868 GBP
Retailer 9£1,874 GBP
Retailer 7£1,898 GBP
Retailer 6£1,942 GBP
Retailer 1£2,029 GBP
Retailer 14£2,066 GBP
Retailer 2£2,069 GBP
Retailer 3£2,203 GBP
Retailer 11£2,211 GBP
Retailer 10£2,276 GBP
Retailer 5£2,331 GBP
Retailer 4£2,342 GBP
Retailer 15£2,406 GBP
Yorxs£2,613 GBP

25 data points across 16 retailers

16 retailers£1,817 GBP to £2,613 GBP

Retailer 1
-
£1,797 GBP
Price last confirmed 17 days ago
B+
Retailer 2
-
£1,817 GBP
View
B+
Retailer 3
-
£1,874 GBP
View
B
Retailer 4
-
£1,898 GBP
View
B
Retailer 5
-
£1,942 GBP
View
B
Retailer 6
-
£2,029 GBP
View
B
Retailer 7
-
£2,066 GBP
View
B
Retailer 8
-
£2,069 GBP
View
B
Retailer 9
-
£2,203 GBP
View
B
Retailer 10
-
£2,211 GBP
View
B
Retailer 11
-
£2,276 GBP
View
B
Retailer 12
-
£2,331 GBP
View
B
Retailer 13
-
£2,331 GBP
View
B
Retailer 14
-
£2,342 GBP
View
B
Retailer 15
-
£2,406 GBP
View
Most Expensive
B
Yorxs
474803636 · Nov 6
£2,613 GBP
€3,331 EUR
View
15 more retailers have this diamond
Prices start from £1,817 GBPSave up to £796 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
£1,817 GBP