CaratHunter
Plans
Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 1569290395

Certificate GIA 1569290395

Diamond specifications and retailer prices

From $493 USD
As of November 2, 2026
Save $1,184 USD (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,677 USD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1569290395. Listed at 7 retailers as of October 30, 2026, with prices from $493 to $1,677, a $1,184 spread on the same certified stone. NZ Jewellers lists it at $1,677. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1569290395
Dimensions8.25 × 4.02 × 2.62 mm
L/W Ratio2.05
Top View
8.25 mm4.02 mm0.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1569290395
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 65.2%

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 2
Current: $1,677 USD|Low: $493 USD|High: $1,903 USD|Avg: $817 USD|-11.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$493 USD
Retailer 4$576 USD
Retailer 2$639 USD
Retailer 7$666 USD
Retailer 3$671 USD
Retailer 6$706 USD
NZ Jewellers$1,677 USD

35 data points across 7 retailers

7 retailers$493 USD to $1,677 USD

A
Cheapest Retailer
-
$493 USD
Final sale: no returns
A
Retailer 2
-
$576 USD
View
B+
Retailer 3
-
$639 USD
£503 GBP
View
B+
Retailer 4
-
$666 USD
View
B+
Retailer 5
-
$671 USD
£529 GBP
View
B+
Retailer 6
-
$706 USD
View
Most Expensive
B
NZ Jewellers
4f134632-53d8-43dd-bacb-b6986358acba · Oct 30
$1,677 USD
View
6 more retailers have this diamond
Prices start from $493 USDSave up to $1,184 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
$493 USD