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Cushion|Natural|GIA

0.78ct F SI1 Cushion Natural Diamond

GD • F/SI1 • GIA 3545240341

Certificate GIA 3545240341

Diamond specifications and retailer prices

From £468 GBP
As of November 6, 2026
Save £197 GBP (30%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £665 GBP at Jared · As of November 6, 2026
View at Jared

About this 0.78ct natural cushion diamond

This 0.78ct natural cushion sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3545240341. Listed at 9 retailers as of November 6, 2026, with prices from £468 to £665, a £197 spread on the same certified stone. Jared lists it at £665. 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

0.78
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545240341
Dimensions5.18 × 5.03 × 3.41 mm
L/W Ratio1.03
Top View
5.18 mm5.03 mm0.78 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3545240341
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £665 GBP|Low: £436 GBP|High: £740 GBP|Avg: £598 GBP|-10.1%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 11£446 GBP
Retailer 7£468 GBP
Retailer 4£482 GBP
Retailer 6£563 GBP
Retailer 9£577 GBP
Retailer 8£597 GBP
Retailer 2£601 GBP
Retailer 5£643 GBP
Retailer 10£643 GBP
Jared£665 GBP
Retailer 3£725 GBP

42 data points across 11 retailers

9 retailers£468 GBP to £665 GBP

A
Cheapest Retailer
-
£468 GBP
Final sale: no returns
A
Retailer 2
-
£482 GBP
View
A
Retailer 3
-
£563 GBP
View
A
Retailer 4
-
£577 GBP
View
A
Retailer 5
-
£597 GBP
View
A
Retailer 6
-
£601 GBP
View
B+
Retailer 7
-
£643 GBP
View
B+
Retailer 8
-
£643 GBP
View
Most Expensive
B+
Jared
159885785 · Nov 6
£665 GBP
$890 USD
View
8 more retailers have this diamond
Prices start from £468 GBPSave up to £197 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
0.78ct Cushion
£468 GBP