Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 5446816730

Certificate GIA 5446816730

Diamond specifications and retailer prices

From $451 USD
As of October 31, 2026
Save $504 USD (53%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $955 USD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5446816730. Listed at 5 retailers as of October 31, 2026, with prices from $451 to $955, a $504 spread on the same certified stone. 77 Diamonds lists it at $955. 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
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5446816730
Dimensions7.14 × 4.06 × 2.84 mm
L/W Ratio1.76
Top View
7.14 mm4.06 mm0.50 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5446816730
Side View
Table 63.0%CrownGirdle: ETK-ETKPavilionCulet: NoneDepth 70.0%

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: $955 USD|Low: $410 USD|High: $975 USD|Avg: $756 USD|+0.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2$451 USD
Retailer 3$653 USD
77 Diamonds$955 USD
Retailer 4$975 USD

34 data points across 4 retailers

5 retailers$451 USD to $955 USD

B+
Cheapest Retailer
-
$451 USD
Final sale: no returns
B+
Retailer 2
-
$607 USD
View
B+
Retailer 3
-
$653 USD
View
B
Retailer 4
-
$774 USD
View
Most Expensive
B
77 Diamonds
MQMBJYHCF2JD · Nov 2
$955 USD
£752 GBP
View
4 more retailers have this diamond
Prices start from $451 USDSave up to $504 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 Marquise
$451 USD