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Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 2566502812

Certificate GIA 2566502812

Diamond specifications and retailer prices

From $512 USD
HK$4,000 HKD
As of November 1, 2026
Save $331 USD (39%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $843 USD at Yorxs · As of November 2, 2026
View at Yorxs

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 2566502812. Listed at 6 retailers as of November 1, 2026, with prices from $512 to $843, a $331 spread on the same certified stone. Yorxs lists it at $843. 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566502812
Dimensions8.29 × 3.99 × 2.59 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
8.29 mm3.99 mm0.50 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566502812
Side View
Table 57.0%CrownGirdle: Very ThickPavilionCulet: 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: Nov 1
Current: $512 USD|Low: $512 USD|High: $843 USD|Avg: $639 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 2, 2026
Retailer 1$512 USD
Retailer 4$566 USD
Retailer 3$620 USD
Retailer 2$634 USD
Yorxs$843 USD

8 data points across 5 retailers

6 retailers$512 USD to $843 USD

B+
Cheapest Retailer
-
$512 USD
HK$4,000 HKD
B+
Retailer 2
-
$566 USD
View
Final sale: no returns
Retailer 3
-
$610 USD
SGD 824 SGD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
$620 USD
View
Retailer 5
-
$634 USD
SGD 857 SGD
View
Price last confirmed 12 days ago
Most Expensive
B
Yorxs
622888414 · Nov 2
$843 USD
€803 EUR
View
5 more retailers have this diamond
Prices start from $512 USDSave up to $331 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
$512 USD