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Cushion|Natural|GIA

0.50ct F SI1 Cushion Natural Diamond

GD • F/SI1 • GIA 6551726923

Certificate GIA 6551726923

Diamond specifications and retailer prices

From £256 GBP
$343 USD
As of November 2, 2026
Save £970 GBP (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,226 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 0.5ct natural cushion diamond

This 0.5ct natural cushion sits in the half to three-quarter 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 6551726923. Listed at 13 retailers as of October 27, 2026, with prices from £256 to £1,226, a £970 spread on the same certified stone. Queensmith lists it at £1,226. 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

0.50
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551726923
Dimensions4.57 × 4.93 × 3.07 mm
L/W Ratio1.08
Top View
4.57 mm4.93 mm0.50 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551726923
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 67.1%

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 2
Current: £1,226 GBP|Low: £256 GBP|High: £1,311 GBP|Avg: £565 GBP|-4.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 13£256 GBP
Retailer 2£286 GBP
Retailer 12£348 GBP
Retailer 6£361 GBP
Retailer 11£375 GBP
Retailer 3£376 GBP
Retailer 9£422 GBP
Retailer 10£429 GBP
Retailer 8£509 GBP
Retailer 4£537 GBP
Retailer 5£589 GBP
Retailer 7£642 GBP
Queensmith£1,226 GBP

35 data points across 13 retailers

13 retailers£256 GBP to £1,226 GBP

A
Cheapest Retailer
-
£256 GBP
$343 USD
Final sale: no returns
A
Retailer 2
-
£286 GBP
SGD 519 SGD
View
B+
Retailer 3
-
£348 GBP
View
B+
Retailer 4
-
£361 GBP
View
B+
Retailer 5
-
£375 GBP
$503 USD
View
B+
Retailer 6
-
£376 GBP
$505 USD
View
B+
Retailer 7
-
£422 GBP
$566 USD
View
B+
Retailer 8
-
£429 GBP
ZAR 9,290 ZAR
View
B
Retailer 9
-
£509 GBP
€650 EUR
View
Retailer 10
-
£537 GBP
$721 USD
View
Price last confirmed 19 days ago
Retailer 11
-
£589 GBP
A$1,216 AUD
View
Price last confirmed 30 days ago
B
Retailer 12
-
£642 GBP
View
Most Expensive
C
Queensmith
6551726923 · Oct 27
£1,226 GBP
View
12 more retailers have this diamond
Prices start from £256 GBPSave up to £970 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
0.50ct Cushion
£256 GBP