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Round|Natural|GIA

1.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1236706610

Certificate GIA 1236706610

Diamond specifications and retailer prices

From $11,727 NZD
As of November 6, 2026
Save $11,301 NZD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $26,973 NZD at NZ Jewellers · As of October 23, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1236706610. Listed at 19 retailers as of November 4, 2026, with a 96% 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1236706610
Dimensions7.28 × 7.22 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.28 mm7.22 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236706610
Side View
Table 59.0%Crown 36°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.6%

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 6
Current: $15,387 NZD|Low: $11,727 NZD|High: $23,455 NZD|Avg: $16,232 NZD|-4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 11$11,727 NZD
Retailer 4$12,675 NZD
Retailer 2$12,869 NZD
Retailer 14$13,872 NZD
Retailer 7$14,358 NZD
Retailer 5$14,516 NZD
Retailer 13$15,106 NZD
Retailer 12$15,185 NZD
Retailer 9$15,192 NZD
Retailer 8$15,293 NZD
Retailer 1$15,387 NZD
Retailer 17$16,288 NZD
Retailer 6$16,542 NZD
Retailer 10$16,964 NZD
Retailer 16$17,204 NZD
Retailer 15$19,358 NZD
Retailer 3$23,028 NZD

22 data points across 17 retailers

19 retailers$11,727 NZD to $23,028 NZD

A
Cheapest Retailer
-
$11,727 NZD
A
Retailer 2
-
$12,675 NZD
View
A
Retailer 3
-
$12,869 NZD
View
Retailer 4
-
$13,199 NZD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$13,872 NZD
View
A
Retailer 6
-
$14,358 NZD
View
A
Retailer 7
-
$14,516 NZD
View
B+
Retailer 8
-
$15,106 NZD
View
B+
Retailer 9
-
$15,185 NZD
View
Retailer 10
-
$15,192 NZD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
$15,293 NZD
View
Final sale: no returns
B+
Retailer 12
-
$15,387 NZD
View
B+
Retailer 13
-
$16,288 NZD
View
Retailer 14
-
$16,542 NZD
View
Price last confirmed 3 days ago
B+
Retailer 15
-
$16,964 NZD
View
B+
Retailer 16
-
$17,204 NZD
View
B+
Retailer 17
-
$19,358 NZD
View
B
Retailer 18
-
$23,028 NZD
View
Most Expensive
NZ Jewellers
59cabcad-5a56-4d51-8662-0e41e98f1b52 · Oct 23
$26,973 NZD
$15,163 USD
View
Price last confirmed 14 days ago
18 more retailers have this diamond
Prices start from $11,727 NZDSave up to $11,301 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
$11,727 NZD