Cushion|Natural|GIA

0.50ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 1518717105

Certificate GIA 1518717105

Diamond specifications and retailer prices

From $379 USD
As of October 29, 2026
Save $144 USD (28%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $523 USD at 77 Diamonds · As of October 30, 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 29, 2026, with prices from $379 to $523, a $144 spread on the same certified stone. 77 Diamonds lists it at $523. 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
Color
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 29
Current: $523 USD|Low: $331 USD|High: $551 USD|Avg: $441 USD|-3.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3$379 USD
Retailer 6$396 USD
Retailer 5$404 USD
Retailer 2$443 USD
Retailer 4$454 USD
77 Diamonds$523 USD

40 data points across 6 retailers

5 retailers$379 USD to $523 USD

B+
Cheapest Retailer
-
$379 USD
Final sale: no returns
B+
Retailer 2
-
$404 USD
MYR 1,647 MYR
View
B+
Retailer 3
-
$443 USD
View
B+
Retailer 4
-
$454 USD
SGD 614 SGD
View
Most Expensive
B+
77 Diamonds
CUSCPSKVQGASN · Oct 30
$523 USD
£412 GBP
View
4 more retailers have this diamond
Prices start from $379 USDSave up to $144 USD

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
$379 USD