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Cushion|Natural|GIA

0.50ct D SI1 Cushion Natural Diamond

VG • D/SI1 • GIA 1529877118

Certificate GIA 1529877118

Diamond specifications and retailer prices

From £342 GBP
$458 USD
As of October 31, 2026
Save £644 GBP (65%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £986 GBP at MOH London · As of October 29, 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1529877118. Listed at 22 retailers as of October 29, 2026, with prices from £342 to £986, a £644 spread on the same certified stone. MOH London lists it at £986. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle36°
OriginNatural
Grading LabGIA
CertificateGIA 1529877118
Dimensions4.57 × 4.44 × 3.03 mm
L/W Ratio1.03
Girdle conditionFaceted
Top View
4.57 mm4.44 mm0.50 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1529877118
Side View
Table 64.0%Crown 36.7°Girdle: MED-VTKPavilion 36°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: Oct 31
Current: £986 GBP|Low: £295 GBP|High: £992 GBP|Avg: £509 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 2£342 GBP
Retailer 19£351 GBP
Retailer 6£355 GBP
Retailer 8£366 GBP
Retailer 9£392 GBP
Retailer 7£414 GBP
Retailer 5£437 GBP
Retailer 17£444 GBP
Retailer 3£470 GBP
Retailer 4£470 GBP
Retailer 18£485 GBP
Retailer 15£519 GBP
Retailer 14£523 GBP
Retailer 16£532 GBP
Retailer 11£539 GBP
Retailer 12£570 GBP
Retailer 10£638 GBP
Retailer 13£655 GBP
MOH London£986 GBP

29 data points across 19 retailers

22 retailers£342 GBP to £986 GBP

A
Cheapest Retailer
-
£342 GBP
$458 USD
A
Retailer 2
-
£351 GBP
$470 USD
View
A
Retailer 3
-
£355 GBP
$476 USD
View
Final sale: no returns
Retailer 4
-
£366 GBP
$490 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
£392 GBP
HK$4,100 HKD
View
A
Retailer 6
-
£414 GBP
$555 USD
View
B+
Retailer 7
-
£437 GBP
$585 USD
View
B+
Retailer 8
-
£444 GBP
$595 USD
View
B+
Retailer 9
-
£444 GBP
$595 USD
View
B+
Retailer 10
-
£463 GBP
$621 USD
View
B+
Retailer 11
-
£470 GBP
$630 USD
View
B+
Retailer 12
-
£470 GBP
$630 USD
View
B+
Retailer 13
-
£485 GBP
$650 USD
View
B+
Retailer 14
-
£519 GBP
View
B+
Retailer 15
-
£523 GBP
View
B+
Retailer 16
-
£532 GBP
View
B+
Retailer 17
-
£534 GBP
$715 USD
View
B+
Retailer 18
-
£539 GBP
$722 USD
View
B+
Retailer 19
-
£570 GBP
€727 EUR
View
Retailer 20
-
£638 GBP
A$1,316 AUD
View
Price last confirmed 26 days ago
B+
Retailer 21
-
£655 GBP
ZAR 14,180 ZAR
View
Most Expensive
B
MOH London
889EDD79C · Oct 29
£986 GBP
View
21 more retailers have this diamond
Prices start from £342 GBPSave up to £644 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
£342 GBP