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Cushion|Natural|GIA

1.30ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2427839624

Certificate GIA 2427839624

Diamond specifications and retailer prices

From £4,968 GBP
As of November 6, 2026
Save £716 GBP (13%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £7,687 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2427839624. Listed at 6 retailers as of November 6, 2026, with a relatively tight 14% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.30
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2427839624
Dimensions6.95 × 6.00 × 3.99 mm
L/W Ratio1.16
Top View
6.95 mm6.00 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2427839624
Side View
Table 74.0%CrownGirdle: MediumPavilionCulet: NoneDepth 66.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £7,687 GBP|Low: £4,124 GBP|High: £7,801 GBP|Avg: £5,577 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5£4,124 GBP
Retailer 3£4,968 GBP
Retailer 4£5,078 GBP
Retailer 2£5,685 GBP
Retailer 6£5,767 GBP
MOH London£7,687 GBP

32 data points across 6 retailers

6 retailers£4,968 GBP to £5,685 GBP

Retailer 1
-
£4,124 GBP
Price last confirmed 17 days ago
B
Retailer 2
-
£4,968 GBP
View
Retailer 3
-
£5,078 GBP
View
Price last confirmed 16 days ago
B
Retailer 4
-
£5,685 GBP
View
Retailer 5
-
£5,767 GBP
View
Price last confirmed 15 days ago
Most Expensive
MOH London
F61766D56 · Nov 4
£7,687 GBP
View
Price under review
5 more retailers have this diamond
Prices start from £4,968 GBPSave up to £716 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
£4,968 GBP