Round|Natural|GIA

1.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1535711463

Certificate GIA 1535711463

Diamond specifications and retailer prices

From $5,627 NZD
As of November 4, 2026
Save $7,014 NZD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $13,171 NZD at NZ Jewellers · As of October 20, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1535711463. Listed at 18 retailers as of November 2, 2026, with a 125% 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

1.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1535711463
Dimensions7.32 × 7.29 × 4.49 mm
L/W Ratio1.00
Star length50%
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.32 mm7.29 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1535711463
Side View
Table 59.0%Crown 36°Girdle: Sli. ThickPavilion 40.6°Culet: NoneDepth 61.6%

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 4
Current: $13,171 NZD|Low: $5,627 NZD|High: $13,171 NZD|Avg: $8,627 NZD
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
November 6, 2026
Retailer 4$5,627 NZD
Retailer 10$6,119 NZD
Retailer 12$6,335 NZD
Retailer 13$6,546 NZD
Retailer 3$7,112 NZD
Retailer 9$7,614 NZD
Retailer 2$8,233 NZD
Retailer 5$8,263 NZD
Retailer 8$8,489 NZD
Retailer 7$8,539 NZD
Retailer 6$9,227 NZD
Retailer 11$12,641 NZD
NZ Jewellers$13,171 NZD

36 data points across 13 retailers

18 retailers$5,627 NZD to $12,641 NZD

A
Cheapest Retailer
-
$5,627 NZD
A
Retailer 2
-
$6,080 NZD
View
A
Retailer 3
-
$6,119 NZD
View
B+
Retailer 4
-
$6,335 NZD
View
B+
Retailer 5
-
$6,546 NZD
View
Retailer 6
-
$6,849 NZD
View
Price last confirmed 15 days ago
Retailer 7
-
$6,849 NZD
View
Price last confirmed 21 days ago
Retailer 8
-
$7,112 NZD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$7,614 NZD
View
Retailer 10
-
$7,904 NZD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
$8,233 NZD
View
B+
Retailer 12
-
$8,263 NZD
View
B+
Retailer 13
-
$8,489 NZD
View
B+
Retailer 14
-
$8,539 NZD
View
Retailer 15
-
$8,553 NZD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$9,227 NZD
View
B
Retailer 17
-
$12,641 NZD
View
Most Expensive
NZ Jewellers
33a4f54c-80f2-41f5-a39c-395b47ca8e26 · Oct 20
$13,171 NZD
$7,404 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from $5,627 NZDSave up to $7,014 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
1.50ct Round
$5,627 NZD