Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5566277388

Certificate GIA 5566277388

Diamond specifications and retailer prices

From $471 USD
As of November 6, 2026
Save $1,296 USD (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,767 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566277388. Listed at 18 retailers as of November 5, 2026, with prices from $471 to $1,767, a $1,296 spread on the same certified stone. NZ Jewellers lists it at $1,767. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceFaint
Crown angle42.3°
Pavilion angle34°
OriginNatural
Grading LabGIA
CertificateGIA 5566277388
Dimensions7.51 × 4.21 × 2.47 mm
L/W Ratio1.78
Girdle conditionFaceted
Culet sizeNone
Top View
7.51 mm4.21 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 5566277388
Side View
Table 60.0%Crown 42.3°Girdle: THK-VTKPavilion 34°Culet: NoneDepth 58.8%

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: Nov 6
Current: $1,767 USD|Low: $403 USD|High: $1,767 USD|Avg: $684 USD|+7.0%
NZ Jewellers
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
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 19$406 USD
Retailer 11$460 USD
Retailer 16$471 USD
Retailer 9$485 USD
Retailer 17$511 USD
Retailer 15$555 USD
Retailer 18$555 USD
Retailer 6$565 USD
Retailer 7$565 USD
Retailer 10$569 USD
Retailer 14$589 USD
Retailer 8$653 USD
Retailer 3$676 USD
Retailer 13$679 USD
Retailer 2$688 USD
Retailer 12$756 USD
Retailer 4$807 USD
Retailer 5$1,212 USD
NZ Jewellers$1,767 USD

24 data points across 19 retailers

18 retailers$471 USD to $1,767 USD

Retailer 1
-
$406 USD
Price last confirmed 11 days ago
Retailer 2
-
$460 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$471 USD
View
Final sale: no returns
Retailer 4
-
$485 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$511 USD
View
A
Retailer 6
-
$555 USD
View
A
Retailer 7
-
$555 USD
View
Retailer 8
-
$565 USD
View
Price last confirmed 12 days ago
Retailer 9
-
$565 USD
View
Price last confirmed 12 days ago
Retailer 10
-
$569 USD
View
Price last confirmed 10 days ago
A
Retailer 11
-
$589 USD
View
B+
Retailer 12
-
$679 USD
View
B+
Retailer 13
-
$688 USD
View
B+
Retailer 14
-
$756 USD
View
Retailer 15
-
$807 USD
View
Price last confirmed 11 days ago
Retailer 16
-
$839 USD
View
Price last confirmed 33 days ago
Retailer 17
-
$1,212 USD
View
Price last confirmed 12 days ago
Most Expensive
C
NZ Jewellers
5d455ea6-a4b4-4a43-970c-4a09e1015088 · Nov 5
$1,767 USD
View
17 more retailers have this diamond
Prices start from $471 USDSave up to $1,296 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
$471 USD