CaratHunter
Plans
Cushion|Natural|GIA

0.50ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 5526522877

Certificate GIA 5526522877

Diamond specifications and retailer prices

From £288 GBP
$387 USD
As of November 2, 2026
Save £508 GBP (64%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £796 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.5ct natural cushion diamond

This 0.5ct natural cushion sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5526522877. Listed at 10 retailers as of November 2, 2026, with prices from £288 to £796, a £508 spread on the same certified stone. MOH London lists it at £796. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.3°
Pavilion angle34.4°
OriginNatural
Grading LabGIA
CertificateGIA 5526522877
Dimensions4.91 × 4.24 × 2.90 mm
L/W Ratio1.16
Top View
4.91 mm4.24 mm0.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5526522877
Side View
Table 64.0%Crown 33.3°Girdle: ThickPavilion 34.4°Culet: NoneDepth 68.3%

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: £796 GBP|Low: £236 GBP|High: £932 GBP|Avg: £467 GBP|-14.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5£288 GBP
Retailer 9£297 GBP
Retailer 2£306 GBP
Retailer 7£324 GBP
Retailer 6£393 GBP
Retailer 4£426 GBP
Retailer 3£432 GBP
Retailer 8£520 GBP
Retailer 10£568 GBP
MOH London£796 GBP

44 data points across 10 retailers

10 retailers£288 GBP to £796 GBP

B+
Cheapest Retailer
-
£288 GBP
$387 USD
Final sale: no returns
A
Retailer 2
-
£297 GBP
$399 USD
View
A
Retailer 3
-
£306 GBP
$410 USD
View
A
Retailer 4
-
£324 GBP
HK$3,400 HKD
View
B+
Retailer 5
-
£393 GBP
$528 USD
View
B+
Retailer 6
-
£426 GBP
View
B+
Retailer 7
-
£432 GBP
$580 USD
View
B
Retailer 8
-
£520 GBP
€665 EUR
View
Retailer 9
-
£568 GBP
A$1,172 AUD
View
Price last confirmed 28 days ago
Most Expensive
B
MOH London
F44118FB1 · Nov 2
£796 GBP
View
9 more retailers have this diamond
Prices start from £288 GBPSave up to £508 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
£288 GBP