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Cushion|Natural|GIA

0.78ct F SI1 Cushion Natural Diamond

GD • F/SI1 • GIA 7562282648

Certificate GIA 7562282648

Diamond specifications and retailer prices

From £547 GBP
As of November 6, 2026
Save £129 GBP (19%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £675 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

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 7562282648. Listed at 6 retailers as of November 5, 2026, with prices from £547 to £675, a £129 spread on the same certified stone. Blue Nile lists it at £675. 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 7562282648
Dimensions5.16 × 5.04 × 3.43 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
5.16 mm5.04 mm0.78 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7562282648
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £675 GBP|Low: £547 GBP|High: £697 GBP|Avg: £608 GBP|-3.1%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 3£547 GBP
Retailer 6£553 GBP
Retailer 5£597 GBP
Retailer 4£612 GBP
Retailer 2£639 GBP
Blue Nile£675 GBP

41 data points across 6 retailers

6 retailers£547 GBP to £675 GBP

A
Cheapest Retailer
-
£547 GBP
Final sale: no returns
A
Retailer 2
-
£553 GBP
View
A
Retailer 3
-
£597 GBP
View
B+
Retailer 4
-
£612 GBP
View
B+
Retailer 5
-
£639 GBP
View
Most Expensive
B+
Blue Nile
30211277 · Nov 5
£675 GBP
$904 USD
View
5 more retailers have this diamond
Prices start from £547 GBPSave up to £129 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
£547 GBP