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Round|Natural|GIA

1.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1226746537

Certificate GIA 1226746537

Diamond specifications and retailer prices

From $11,061 NZD
$6,234 USD
As of October 31, 2026
Save $13,850 NZD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $24,911 NZD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1226746537. Listed at 19 retailers as of October 30, 2026, with prices from $11,061 to $24,911, a $13,850 spread on the same certified stone. NZ Jewellers lists it at $24,911. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1226746537
Dimensions7.35 × 7.31 × 4.52 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds, pinpoints and surface graining are not shown.
Key to symbols
Cloud, Feather, Crystal, Needle, Indented Natural
Top View
7.35 mm7.31 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1226746537
Side View
Table 60.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.9%

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: Oct 31
Current: $24,911 NZD|Low: $10,821 NZD|High: $24,911 NZD|Avg: $15,128 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9$11,061 NZD
Retailer 6$11,178 NZD
Retailer 3$12,456 NZD
Retailer 7$12,456 NZD
Retailer 10$13,494 NZD
Retailer 8$13,701 NZD
Retailer 4$13,965 NZD
Retailer 2$15,357 NZD
Retailer 11$15,569 NZD
Retailer 5$20,868 NZD
NZ Jewellers$24,911 NZD

38 data points across 11 retailers

19 retailers$11,061 NZD to $24,911 NZD

B+
Cheapest Retailer
-
$11,061 NZD
$6,234 USD
B+
Retailer 2
-
$11,178 NZD
$6,300 USD
View
B+
Retailer 3
-
$11,258 NZD
$6,345 USD
View
B+
Retailer 4
-
$11,592 NZD
A$10,051 AUD
View
B+
Retailer 5
-
$11,769 NZD
$6,633 USD
View
B+
Retailer 6
-
$12,456 NZD
$7,020 USD
View
B
Retailer 7
-
$12,456 NZD
$7,020 USD
View
Final sale: no returns
B
Retailer 8
-
$13,266 NZD
$7,476 USD
View
B+
Retailer 9
-
$13,494 NZD
$7,605 USD
View
B+
Retailer 10
-
$13,701 NZD
$7,722 USD
View
B+
Retailer 11
-
$13,965 NZD
£6,198 GBP
View
B
Retailer 12
-
$14,709 NZD
$8,290 USD
View
B
Retailer 13
-
$14,709 NZD
$8,290 USD
View
B
Retailer 14
-
$15,188 NZD
$8,560 USD
View
B
Retailer 15
-
$15,357 NZD
€8,243 EUR
View
B
Retailer 16
-
$15,569 NZD
$8,775 USD
View
Retailer 17
-
$16,405 NZD
$9,246 USD
View
Price last confirmed 9 days ago
B
Retailer 18
-
$20,868 NZD
£9,261 GBP
View
Most Expensive
B
NZ Jewellers
bce9b288-bbd7-49aa-8d67-ae191e7ce395 · Oct 30
$24,911 NZD
$14,040 USD
View
18 more retailers have this diamond
Prices start from $11,061 NZDSave up to $13,850 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
$11,061 NZD