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Cushion|Natural|GIA

1.30ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 6531489282

Certificate GIA 6531489282

Diamond specifications and retailer prices

From £2,583 GBP
As of November 6, 2026
Save £2,768 GBP (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £5,350 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 6531489282. Listed at 20 retailers as of November 4, 2026, with prices from £2,583 to £5,350, a £2,768 spread on the same certified stone. MOH London lists it at £5,350. 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

1.30
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.3°
Pavilion angle58.6°
OriginNatural
Grading LabGIA
CertificateGIA 6531489282
Dimensions6.18 × 6.05 × 4.21 mm
L/W Ratio1.02
Top View
6.18 mm6.05 mm1.30 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6531489282
Side View
Table 68.0%Crown 38.3°Girdle: THK-VTKPavilion 58.6°Culet: NoneDepth 69.6%

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 6
Current: £5,350 GBP|Low: £2,436 GBP|High: £5,429 GBP|Avg: £3,574 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£2,583 GBP
Retailer 2£2,789 GBP
Retailer 6£3,051 GBP
Retailer 7£3,178 GBP
Retailer 8£3,395 GBP
Retailer 4£3,412 GBP
Retailer 3£3,754 GBP
Retailer 5£4,109 GBP
MOH London£5,350 GBP

45 data points across 9 retailers

20 retailers£2,583 GBP to £5,350 GBP

B+
Cheapest Retailer
-
£2,583 GBP
B+
Retailer 2
-
£2,590 GBP
View
B+
Retailer 3
-
£2,654 GBP
View
B+
Retailer 4
-
£2,684 GBP
View
B+
Retailer 5
-
£2,789 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,906 GBP
View
B+
Retailer 7
-
£3,041 GBP
View
Retailer 8
-
£3,051 GBP
View
Price last confirmed 9 days ago
B
Retailer 9
-
£3,165 GBP
View
B
Retailer 10
-
£3,178 GBP
View
B
Retailer 11
-
£3,191 GBP
View
B
Retailer 12
-
£3,384 GBP
View
B
Retailer 13
-
£3,384 GBP
View
Retailer 14
-
£3,395 GBP
View
Price last confirmed 29 days ago
B
Retailer 15
-
£3,412 GBP
View
B
Retailer 16
-
£3,428 GBP
View
B
Retailer 17
-
£3,496 GBP
View
B
Retailer 18
-
£3,754 GBP
View
B
Retailer 19
-
£4,109 GBP
View
Most Expensive
B
MOH London
682EC2862 · Nov 4
£5,350 GBP
View
19 more retailers have this diamond
Prices start from £2,583 GBPSave up to £2,768 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+
1.30ct Cushion
£2,583 GBP