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Cushion|Natural|GIA

1.05ct L SI1 Cushion Natural Diamond

ID • L/SI1 • GIA 2

Certificate GIA 2

Diamond specifications and retailer prices

From £1,450 GBP
As of November 6, 2026
Save £85 GBP (6%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,536 GBP at DreamStone · As of November 4, 2026
View at DreamStone

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of November 4, 2026, with a relatively tight 6% 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

1.05
Carat
L
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2
Dimensions6.55 × 5.49 mm
L/W Ratio1.19
Top View
6.55 mm5.49 mm1.05 ctL / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2
Side View
Table 65.0%CrownGirdlePavilionCulet: NoneDepth 67.9%

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: £1,536 GBP|Low: £1,431 GBP|High: £1,536 GBP|Avg: £1,498 GBP
DreamStone
Retailer 2
September 23, 2026
Retailer 2£1,450 GBP
DreamStone£1,536 GBP

3 data points across 2 retailers

2 retailers£1,450 GBP to £1,536 GBP

B
Cheapest Retailer
-
£1,450 GBP
Most Expensive
B
DreamStone
636c1d5576315c1dde597fde · Nov 4
£1,536 GBP
$2,055 USD
View
1 more retailer has this diamond
Prices start from £1,450 GBPSave up to £85 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
1.05ct Cushion
£1,450 GBP