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Marquise|Natural|GIA

0.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1568001181

Certificate GIA 1568001181

Diamond specifications and retailer prices

From $1,046 NZD
HK$4,600 HKD
As of November 1, 2026
Save $1,831 NZD (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,885 NZD 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
Colour
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: $3,885 NZD|Low: $1,001 NZD|High: $3,885 NZD|Avg: $1,603 NZD|+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$1,046 NZD
Retailer 6$1,143 NZD
Retailer 15$1,239 NZD
Retailer 17$1,239 NZD
Retailer 3$1,244 NZD
Retailer 16$1,287 NZD
Retailer 8$1,288 NZD
Retailer 9$1,429 NZD
Retailer 14$1,429 NZD
Retailer 7$1,445 NZD
Retailer 10$1,521 NZD
Retailer 2$1,530 NZD
Retailer 5$1,555 NZD
Retailer 11$1,762 NZD
Retailer 12$1,912 NZD
Retailer 13$2,878 NZD
NZ Jewellers$3,885 NZD

28 data points across 17 retailers

19 retailers$1,046 NZD to $2,878 NZD

A
Cheapest Retailer
-
$1,046 NZD
HK$4,600 HKD
A
Retailer 2
-
$1,143 NZD
$643 USD
View
Final sale: no returns
A
Retailer 3
-
$1,239 NZD
$697 USD
View
A
Retailer 4
-
$1,239 NZD
$697 USD
View
A
Retailer 5
-
$1,244 NZD
$700 USD
View
B+
Retailer 6
-
$1,287 NZD
$724 USD
View
Retailer 7
-
$1,288 NZD
SGD 979 SGD
View
Price last confirmed 7 days ago
Retailer 8
-
$1,429 NZD
$804 USD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$1,429 NZD
$804 USD
View
B+
Retailer 10
-
$1,445 NZD
$813 USD
View
B+
Retailer 11
-
$1,521 NZD
£674 GBP
View
B+
Retailer 12
-
$1,530 NZD
£678 GBP
View
B+
Retailer 13
-
$1,555 NZD
$875 USD
View
Retailer 14
-
$1,661 NZD
£736 GBP
View
Price last confirmed 40 days ago
B+
Retailer 15
-
$1,762 NZD
€944 EUR
View
B
Retailer 16
-
$1,912 NZD
ZAR 17,384 ZAR
View
Retailer 17
-
$1,932 NZD
A$1,672 AUD
View
Price last confirmed 30 days ago
B
Retailer 18
-
$2,878 NZD
£1,275 GBP
View
Most Expensive
NZ Jewellers
94121af3-7a34-4753-ae90-d186f36a342f · Nov 3
$3,885 NZD
$2,186 USD
View
Price under review
18 more retailers have this diamond
Prices start from $1,046 NZDSave up to $1,831 NZD

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
$1,046 NZD