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Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2554462236

Certificate GIA 2554462236

Diamond specifications and retailer prices

From $8,686 NZD
As of November 1, 2026
Save $10,612 NZD (55%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $19,298 NZD at NZ Jewellers · As of November 2, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554462236. Listed at 27 retailers as of November 1, 2026, with prices from $8,686 to $19,298, a $10,612 spread on the same certified stone. NZ Jewellers lists it at $19,298. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2554462236
Dimensions7.28 × 7.25 × 4.56 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
7.28 mm7.25 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554462236
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.8%

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 1
Current: $19,298 NZD|Low: $8,686 NZD|High: $19,298 NZD|Avg: $11,300 NZD|+3.9%
NZ Jewellers
Retailer 2
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Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
November 5, 2026
Retailer 3$8,686 NZD
Retailer 6$8,807 NZD
Retailer 7$8,863 NZD
Retailer 12$9,115 NZD
Retailer 26$9,121 NZD
Retailer 8$9,234 NZD
Retailer 14$9,647 NZD
Retailer 27$9,759 NZD
Retailer 18$10,093 NZD
Retailer 15$10,250 NZD
Retailer 9$10,318 NZD
Retailer 4$10,454 NZD
Retailer 5$10,454 NZD
Retailer 10$10,454 NZD
Retailer 16$10,576 NZD
Retailer 25$10,641 NZD
Retailer 21$10,995 NZD
Retailer 19$11,045 NZD
Retailer 17$11,433 NZD
Retailer 20$11,491 NZD
Retailer 22$11,866 NZD
Retailer 11$12,061 NZD
Retailer 2$12,297 NZD
Retailer 24$14,177 NZD
Retailer 13$16,720 NZD
Retailer 23$16,998 NZD
NZ Jewellers$19,298 NZD

31 data points across 27 retailers

27 retailers$8,686 NZD to $19,298 NZD

A
Cheapest Retailer
-
$8,686 NZD
A
Retailer 2
-
$8,807 NZD
View
A
Retailer 3
-
$8,863 NZD
View
A
Retailer 4
-
$9,115 NZD
View
A
Retailer 5
-
$9,121 NZD
View
A
Retailer 6
-
$9,234 NZD
View
A
Retailer 7
-
$9,485 NZD
View
A
Retailer 8
-
$9,759 NZD
View
B+
Retailer 9
-
$10,093 NZD
View
B+
Retailer 10
-
$10,250 NZD
View
B+
Retailer 11
-
$10,318 NZD
View
B+
Retailer 12
-
$10,454 NZD
View
B+
Retailer 13
-
$10,454 NZD
View
Retailer 14
-
$10,454 NZD
View
Price last confirmed 8 days ago
Retailer 15
-
$10,576 NZD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$10,641 NZD
View
B+
Retailer 17
-
$10,995 NZD
View
Retailer 18
-
$11,045 NZD
View
Price last confirmed 34 days ago
B+
Retailer 19
-
$11,433 NZD
View
Retailer 20
-
$11,491 NZD
View
Price last confirmed 31 days ago
B+
Retailer 21
-
$11,866 NZD
View
B+
Retailer 22
-
$12,061 NZD
View
B+
Retailer 23
-
$12,297 NZD
View
B+
Retailer 24
-
$14,177 NZD
View
B
Retailer 25
-
$16,720 NZD
View
B
Retailer 26
-
$16,998 NZD
View
Most Expensive
B
NZ Jewellers
567a0f31-d2f5-4f2a-9708-cf85a34a9260 · Nov 2
$19,298 NZD
$10,698 USD
View
26 more retailers have this diamond
Prices start from $8,686 NZDSave up to $10,612 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
$8,686 NZD