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Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7556903212

Certificate GIA 7556903212

Diamond specifications and retailer prices

From $8,370 NZD
As of November 1, 2026
Save $10,203 NZD (55%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $18,573 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 7556903212. Listed at 27 retailers as of November 1, 2026, with prices from $8,370 to $18,573, a $10,203 spread on the same certified stone. NZ Jewellers lists it at $18,573. 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
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7556903212
Dimensions7.20 × 7.27 × 4.60 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle, Natural
Top View
7.20 mm7.27 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7556903212
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.5%

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: $18,573 NZD|Low: $8,370 NZD|High: $18,573 NZD|Avg: $11,015 NZD|+4.1%
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 5
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Retailer 11
Retailer 12
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Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
November 5, 2026
Retailer 26$8,370 NZD
Retailer 5$8,500 NZD
Retailer 7$8,529 NZD
Retailer 12$8,774 NZD
Retailer 24$8,778 NZD
Retailer 8$8,886 NZD
Retailer 14$9,286 NZD
Retailer 25$9,407 NZD
Retailer 18$9,725 NZD
Retailer 15$9,878 NZD
Retailer 9$9,939 NZD
Retailer 3$10,060 NZD
Retailer 10$10,060 NZD
Retailer 27$10,060 NZD
Retailer 16$10,154 NZD
Retailer 6$10,239 NZD
Retailer 13$10,479 NZD
Retailer 19$10,744 NZD
Retailer 20$11,004 NZD
Retailer 17$11,016 NZD
Retailer 21$11,420 NZD
Retailer 11$11,608 NZD
Retailer 2$11,850 NZD
Retailer 23$13,643 NZD
Retailer 4$16,089 NZD
Retailer 22$16,361 NZD
NZ Jewellers$18,573 NZD

32 data points across 27 retailers

27 retailers$8,370 NZD to $18,573 NZD

A
Cheapest Retailer
-
$8,370 NZD
A
Retailer 2
-
$8,500 NZD
View
A
Retailer 3
-
$8,529 NZD
View
A
Retailer 4
-
$8,774 NZD
View
A
Retailer 5
-
$8,778 NZD
View
A
Retailer 6
-
$8,886 NZD
View
A
Retailer 7
-
$9,286 NZD
View
Final sale: no returns
A
Retailer 8
-
$9,407 NZD
View
B+
Retailer 9
-
$9,725 NZD
View
B+
Retailer 10
-
$9,878 NZD
View
B+
Retailer 11
-
$9,939 NZD
View
B+
Retailer 12
-
$10,060 NZD
View
B+
Retailer 13
-
$10,060 NZD
View
Retailer 14
-
$10,060 NZD
View
Price last confirmed 8 days ago
Retailer 15
-
$10,154 NZD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$10,239 NZD
View
B+
Retailer 17
-
$10,479 NZD
View
Retailer 18
-
$10,744 NZD
View
Price last confirmed 33 days ago
Retailer 19
-
$11,004 NZD
View
Price last confirmed 31 days ago
B+
Retailer 20
-
$11,016 NZD
View
B+
Retailer 21
-
$11,420 NZD
View
B+
Retailer 22
-
$11,608 NZD
View
B+
Retailer 23
-
$11,850 NZD
View
B
Retailer 24
-
$13,643 NZD
View
B
Retailer 25
-
$16,089 NZD
View
B
Retailer 26
-
$16,361 NZD
View
Most Expensive
B
NZ Jewellers
bbbb6167-a518-4cac-a81f-c7adbe5a2fe3 · Nov 2
$18,573 NZD
$10,296 USD
View
26 more retailers have this diamond
Prices start from $8,370 NZDSave up to $10,203 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
$8,370 NZD