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Cushion|Natural|GIA

0.50ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 1518717105

Certificate GIA 1518717105

Diamond specifications and retailer prices

From $485 SGD
$379 USD
As of October 31, 2026
Save $179 SGD (27%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $663 SGD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1518717105. Listed at 5 retailers as of October 31, 2026, with prices from $485 to $663, a $179 spread on the same certified stone. 77 Diamonds lists it at $663. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1518717105
Dimensions4.62 × 4.47 × 2.90 mm
L/W Ratio1.03
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
4.62 mm4.47 mm0.50 ctD / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1518717105
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.9%

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: Oct 31
Current: $663 SGD|Low: $423 SGD|High: $704 SGD|Avg: $563 SGD|-4.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3$485 SGD
Retailer 6$507 SGD
Retailer 5$517 SGD
Retailer 2$566 SGD
Retailer 4$581 SGD
77 Diamonds$663 SGD

41 data points across 6 retailers

5 retailers$485 SGD to $663 SGD

B+
Cheapest Retailer
-
$485 SGD
$379 USD
Final sale: no returns
B+
Retailer 2
-
$517 SGD
MYR 1,647 MYR
View
B+
Retailer 3
-
$566 SGD
$443 USD
View
B+
Retailer 4
-
$581 SGD
View
Most Expensive
B+
77 Diamonds
CUSCPSKVQGASN · Nov 1
$663 SGD
£408 GBP
View
4 more retailers have this diamond
Prices start from $485 SGDSave up to $179 SGD

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+
0.50ct Cushion
$485 SGD