Cushion|Natural|GIA

0.50ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 6512099692

Certificate GIA 6512099692

Diamond specifications and retailer prices

From £287 GBP
$384 USD
As of October 31, 2026
Save £139 GBP (33%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £425 GBP at Jared · As of October 30, 2026
View at Jared

About this 0.5ct natural cushion diamond

This 0.5ct natural cushion sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6512099692. Listed at 9 retailers as of October 30, 2026, with prices from £287 to £425, a £139 spread on the same certified stone. Jared lists it at £425. 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512099692
Dimensions4.56 × 4.21 × 2.92 mm
L/W Ratio1.08
Top View
4.56 mm4.21 mm0.50 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6512099692
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.3%

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: Oct 31
Current: £425 GBP|Low: £248 GBP|High: £463 GBP|Avg: £380 GBP|-8.1%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5£287 GBP
Retailer 9£306 GBP
Retailer 7£345 GBP
Retailer 3£374 GBP
Retailer 6£384 GBP
Retailer 2£392 GBP
Retailer 4£410 GBP
Retailer 8£410 GBP
Jared£425 GBP

42 data points across 9 retailers

9 retailers£287 GBP to £425 GBP

B+
Cheapest Retailer
-
£287 GBP
$384 USD
Final sale: no returns
A
Retailer 2
-
£306 GBP
MYR 1,671 MYR
View
B+
Retailer 3
-
£345 GBP
SGD 625 SGD
View
B+
Retailer 4
-
£374 GBP
$501 USD
View
B+
Retailer 5
-
£384 GBP
$514 USD
View
B+
Retailer 6
-
£392 GBP
View
B+
Retailer 7
-
£410 GBP
$550 USD
View
B+
Retailer 8
-
£410 GBP
$550 USD
View
Most Expensive
B+
Jared
153422792 · Oct 30
£425 GBP
$570 USD
View
8 more retailers have this diamond
Prices start from £287 GBPSave up to £139 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
£287 GBP