Marquise|Natural|GIA

0.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1568001181

Certificate GIA 1568001181

Diamond specifications and retailer prices

From $589 USD
HK$4,600 HKD
As of November 1, 2026
Save $1,030 USD (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,186 USD at NZ Jewellers · As of November 3, 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 G 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 1568001181. Listed at 19 retailers as of October 29, 2026, with a 175% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1568001181
Dimensions8.58 × 3.78 × 2.45 mm
L/W Ratio2.27
Key to symbols
Twinning Wisp, Feather
Top View
8.58 mm3.78 mm0.50 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1568001181
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 64.9%

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: Nov 1
Current: $2,186 USD|Low: $563 USD|High: $2,186 USD|Avg: $902 USD|+3.8%
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
November 3, 2026
Retailer 4$589 USD
Retailer 6$643 USD
Retailer 15$697 USD
Retailer 17$697 USD
Retailer 3$700 USD
Retailer 16$724 USD
Retailer 8$724 USD
Retailer 9$804 USD
Retailer 14$804 USD
Retailer 7$813 USD
Retailer 10$856 USD
Retailer 2$861 USD
Retailer 5$875 USD
Retailer 11$991 USD
Retailer 12$1,076 USD
Retailer 13$1,619 USD
NZ Jewellers$2,186 USD

28 data points across 17 retailers

19 retailers$589 USD to $1,619 USD

A
Cheapest Retailer
-
$589 USD
HK$4,600 HKD
A
Retailer 2
-
$643 USD
View
Final sale: no returns
A
Retailer 3
-
$697 USD
View
A
Retailer 4
-
$697 USD
View
A
Retailer 5
-
$700 USD
View
B+
Retailer 6
-
$724 USD
View
Retailer 7
-
$724 USD
SGD 979 SGD
View
Price last confirmed 7 days ago
Retailer 8
-
$804 USD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$804 USD
View
B+
Retailer 10
-
$813 USD
View
B+
Retailer 11
-
$856 USD
£674 GBP
View
B+
Retailer 12
-
$861 USD
£678 GBP
View
B+
Retailer 13
-
$875 USD
View
Retailer 14
-
$935 USD
£736 GBP
View
Price last confirmed 40 days ago
B+
Retailer 15
-
$991 USD
€944 EUR
View
B
Retailer 16
-
$1,076 USD
ZAR 17,384 ZAR
View
Retailer 17
-
$1,087 USD
A$1,672 AUD
View
Price last confirmed 30 days ago
B
Retailer 18
-
$1,619 USD
£1,275 GBP
View
Most Expensive
NZ Jewellers
94121af3-7a34-4753-ae90-d186f36a342f · Nov 3
$2,186 USD
View
Price under review
18 more retailers have this diamond
Prices start from $589 USDSave up to $1,030 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
$589 USD