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Cushion|Natural|GIA

0.79ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 1203156012

Certificate GIA 1203156012

Diamond specifications and retailer prices

From £1,244 GBP
$1,670 USD
As of November 2, 2026
Save £643 GBP (34%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,888 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.79ct natural cushion diamond

This 0.79ct natural cushion sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1203156012. Listed at 4 retailers as of November 1, 2026, with prices from £1,244 to £1,888, a £643 spread on the same certified stone. 77 Diamonds lists it at £1,888. 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

0.79
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1203156012
Dimensions5.55 × 5.28 × 3.18 mm
L/W Ratio1.05
Top View
5.55 mm5.28 mm0.79 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1203156012
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.2%

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 2
Current: £1,888 GBP|Low: £1,227 GBP|High: £1,890 GBP|Avg: £1,559 GBP|+2.3%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2£1,244 GBP
77 Diamonds£1,888 GBP

30 data points across 2 retailers

4 retailers£1,244 GBP to £1,888 GBP

B+
Cheapest Retailer
-
£1,244 GBP
$1,670 USD
B+
Retailer 2
-
£1,255 GBP
$1,684 USD
View
B+
Retailer 3
-
£1,297 GBP
A$2,677 AUD
View
Most Expensive
B
77 Diamonds
CUSZWEA2KTSG · Nov 1
£1,888 GBP
View
3 more retailers have this diamond
Prices start from £1,244 GBPSave up to £643 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+
0.79ct Cushion
£1,244 GBP