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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 7542349997

Certificate GIA 7542349997

Diamond specifications and retailer prices

From $1,135 NZD
As of November 6, 2026
Save $1,553 NZD (58%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,611 NZD 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 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 7542349997. Listed at 24 retailers as of November 4, 2026, with a 137% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
Pavilion angle38.8°
OriginNatural
Grading LabGIA
CertificateGIA 7542349997
Dimensions7.99 × 4.10 × 2.54 mm
L/W Ratio1.95
Girdle conditionFaceted
Top View
7.99 mm4.10 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7542349997
Side View
Table 57.0%CrownGirdle: THN-VTKPavilion 38.8°Culet: NoneDepth 62.0%

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: $1,752 NZD|Low: $1,135 NZD|High: $2,726 NZD|Avg: $1,746 NZD|+5.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11$1,135 NZD
Retailer 5$1,257 NZD
Retailer 9$1,322 NZD
Retailer 4$1,331 NZD
Retailer 2$1,384 NZD
Retailer 3$1,385 NZD
Retailer 10$1,651 NZD
Retailer 1$1,752 NZD
Retailer 8$2,071 NZD
Retailer 12$2,210 NZD
Retailer 6$2,268 NZD
Retailer 7$2,688 NZD

45 data points across 12 retailers

24 retailers$1,135 NZD to $2,688 NZD

A
Cheapest Retailer
-
$1,135 NZD
Final sale: no returns
B+
Retailer 2
-
$1,223 NZD
View
B+
Retailer 3
-
$1,257 NZD
View
B+
Retailer 4
-
$1,322 NZD
View
Retailer 5
-
$1,331 NZD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$1,331 NZD
View
B+
Retailer 7
-
$1,346 NZD
View
B+
Retailer 8
-
$1,353 NZD
View
B+
Retailer 9
-
$1,384 NZD
View
B+
Retailer 10
-
$1,385 NZD
View
B
Retailer 11
-
$1,522 NZD
View
B
Retailer 12
-
$1,537 NZD
View
B
Retailer 13
-
$1,642 NZD
View
B
Retailer 14
-
$1,642 NZD
View
B
Retailer 15
-
$1,642 NZD
View
B
Retailer 16
-
$1,651 NZD
View
B
Retailer 17
-
$1,696 NZD
View
B
Retailer 18
-
$1,752 NZD
View
B
Retailer 19
-
$2,071 NZD
View
Retailer 20
-
$2,210 NZD
View
Price last confirmed 34 days ago
B
Retailer 21
-
$2,268 NZD
View
B
Retailer 22
-
$2,363 NZD
View
B
Retailer 23
-
$2,688 NZD
View
Most Expensive
NZ Jewellers
155a80ee-2bbc-416d-afa0-363496a1653f · Nov 5
$4,611 NZD
$2,556 USD
View
Price under review
23 more retailers have this diamond
Prices start from $1,135 NZDSave up to $1,553 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
$1,135 NZD