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Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2527673497

Certificate GIA 2527673497

Diamond specifications and retailer prices

From $8,404 NZD
As of November 6, 2026
Save $9,808 NZD (54%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $18,212 NZD at NZ Jewellers · As of November 5, 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 2527673497. Listed at 25 retailers as of November 5, 2026, with prices from $8,404 to $18,212, a $9,808 spread on the same certified stone. NZ Jewellers lists it at $18,212. 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 angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2527673497
Dimensions7.31 × 7.26 × 4.51 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
7.31 mm7.26 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2527673497
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.8%

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 6
Current: $18,212 NZD|Low: $8,011 NZD|High: $18,212 NZD|Avg: $11,517 NZD|+4.1%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 7, 2026
Retailer 10$8,404 NZD
Retailer 17$8,482 NZD
Retailer 16$9,218 NZD
Retailer 20$9,319 NZD
Retailer 9$9,496 NZD
Retailer 5$10,015 NZD
Retailer 8$10,051 NZD
Retailer 4$10,147 NZD
Retailer 2$10,446 NZD
Retailer 15$10,455 NZD
Retailer 6$10,751 NZD
Retailer 7$10,888 NZD
Retailer 23$10,888 NZD
Retailer 18$11,137 NZD
Retailer 3$11,170 NZD
Retailer 11$11,251 NZD
Retailer 13$11,586 NZD
Retailer 12$12,564 NZD
Retailer 19$13,284 NZD
Retailer 14$15,959 NZD
Retailer 21$15,999 NZD
Retailer 22$16,405 NZD
NZ Jewellers$18,212 NZD

17 data points across 23 retailers

25 retailers$8,404 NZD to $18,212 NZD

A
Cheapest Retailer
-
$8,404 NZD
A
Retailer 2
-
$8,482 NZD
View
A
Retailer 3
-
$9,155 NZD
View
Retailer 4
-
$9,218 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$9,319 NZD
View
B+
Retailer 6
-
$9,496 NZD
View
A
Retailer 7
-
$10,015 NZD
View
A
Retailer 8
-
$10,051 NZD
View
Final sale: no returns
B+
Retailer 9
-
$10,147 NZD
View
B+
Retailer 10
-
$10,446 NZD
View
Retailer 11
-
$10,455 NZD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$10,751 NZD
View
Retailer 13
-
$10,764 NZD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$10,888 NZD
View
B+
Retailer 15
-
$10,888 NZD
View
B+
Retailer 16
-
$11,137 NZD
View
B+
Retailer 17
-
$11,170 NZD
View
B+
Retailer 18
-
$11,251 NZD
View
B+
Retailer 19
-
$11,586 NZD
View
B
Retailer 20
-
$12,564 NZD
View
B
Retailer 21
-
$13,284 NZD
View
B
Retailer 22
-
$15,959 NZD
View
B
Retailer 23
-
$15,999 NZD
View
B
Retailer 24
-
$16,405 NZD
View
Most Expensive
B
NZ Jewellers
0328da95-e06d-4905-b7d6-a1d383768632 · Nov 5
$18,212 NZD
$10,096 USD
View
24 more retailers have this diamond
Prices start from $8,404 NZDSave up to $9,808 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
$8,404 NZD