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Round|Natural|GIA

1.50ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 5516507747

Certificate GIA 5516507747

Diamond specifications and retailer prices

From $4,815 NZD
As of November 5, 2026
Save $6,427 NZD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,243 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5516507747. Listed at 13 retailers as of November 5, 2026, with prices from $4,815 to $11,243, a $6,427 spread on the same certified stone. NZ Jewellers lists it at $11,243. 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

1.50
Carat
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5516507747
Dimensions7.26 × 7.29 × 4.48 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.26 mm7.29 mm1.50 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5516507747
Side View
Table 60.0%Crown 35°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $11,243 NZD|Low: $3,287 NZD|High: $11,243 NZD|Avg: $5,854 NZD|+19.4%
NZ Jewellers
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 7$4,115 NZD
Retailer 10$4,815 NZD
Retailer 6$4,963 NZD
Retailer 9$4,963 NZD
Retailer 3$5,378 NZD
Retailer 11$5,378 NZD
Retailer 8$5,584 NZD
Retailer 12$5,630 NZD
Retailer 4$6,205 NZD
Retailer 5$6,247 NZD
Retailer 2$7,098 NZD
NZ Jewellers$11,243 NZD

41 data points across 12 retailers

13 retailers$4,815 NZD to $11,243 NZD

Retailer 1
-
$4,115 NZD
Price last confirmed 9 days ago
B+
Retailer 2
-
$4,815 NZD
View
B+
Retailer 3
-
$4,963 NZD
View
B+
Retailer 4
-
$4,963 NZD
View
Final sale: no returns
Retailer 5
-
$5,024 NZD
View
Price last confirmed 68 days ago
B+
Retailer 6
-
$5,378 NZD
View
Retailer 7
-
$5,378 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$5,584 NZD
View
B+
Retailer 9
-
$5,630 NZD
View
B
Retailer 10
-
$6,205 NZD
View
B
Retailer 11
-
$6,247 NZD
View
B
Retailer 12
-
$7,098 NZD
View
Most Expensive
C
NZ Jewellers
46d3eabe-5e72-44fe-9fa0-2accdc5cbdc9 · Nov 5
$11,243 NZD
$6,320 USD
View
12 more retailers have this diamond
Prices start from $4,815 NZDSave up to $6,427 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.

B+
1.50ct Round
$4,815 NZD