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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 2566301955

Certificate GIA 2566301955

Diamond specifications and retailer prices

From $491 USD
₹46,764 INR
As of October 26, 2026
Save $975 USD (66%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,466 USD at MOH London · As of October 26, 2026
View at MOH London

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566301955. Listed at 15 retailers as of October 26, 2026, with prices from $491 to $1,466, a $975 spread on the same certified stone. MOH London lists it at $1,466. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39.7°
Pavilion angle37.7°
OriginNatural
Grading LabGIA
CertificateGIA 2566301955
Dimensions7.83 × 4.20 × 2.56 mm
L/W Ratio1.86
Girdle conditionFaceted
Culet sizeNone
Top View
7.83 mm4.20 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2566301955
Side View
Table 63.0%Crown 39.7°Girdle: STK-VTKPavilion 37.7°Culet: NoneDepth 60.9%

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 26
Current: $1,466 USD|Low: $490 USD|High: $1,594 USD|Avg: $794 USD|-8.0%
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
October 27, 2026
Retailer 10$491 USD
Retailer 7$524 USD
Retailer 14$550 USD
Retailer 4$595 USD
Retailer 5$600 USD
Retailer 6$653 USD
Retailer 3$684 USD
Retailer 15$759 USD
Retailer 13$762 USD
Retailer 9$775 USD
Retailer 2$842 USD
Retailer 16$873 USD
Retailer 11$898 USD
Retailer 12$928 USD
Retailer 8$1,026 USD
MOH London$1,466 USD

29 data points across 16 retailers

15 retailers$491 USD to $1,466 USD

A
Cheapest Retailer
-
$491 USD
₹46,764 INR
A
Retailer 2
-
$550 USD
HK$4,300 HKD
View
Retailer 3
-
$595 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$600 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$653 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$684 USD
SGD 924 SGD
View
B+
Retailer 7
-
$759 USD
View
B+
Retailer 8
-
$762 USD
View
B+
Retailer 9
-
$775 USD
£610 GBP
View
B
Retailer 10
-
$842 USD
View
B
Retailer 11
-
$873 USD
View
Retailer 12
-
$898 USD
£707 GBP
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$928 USD
€884 EUR
View
Retailer 14
-
$1,026 USD
A$1,578 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
7C2BEBBA2 · Oct 26
$1,466 USD
£1,154 GBP
View
14 more retailers have this diamond
Prices start from $491 USDSave up to $975 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.

A
0.50ct Marquise
$491 USD