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Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6452477908

Certificate GIA 6452477908

Diamond specifications and retailer prices

From $9,489 NZD
As of November 6, 2026
Save $11,728 NZD (55%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $21,217 NZD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6452477908. Listed at 23 retailers as of November 5, 2026, with prices from $9,489 to $21,217, a $11,728 spread on the same certified stone. Diamond Quarter lists it at $21,217. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6452477908
Dimensions7.33 × 7.28 × 4.51 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.33 mm7.28 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6452477908
Side View
Table 62.0%Crown 33°Girdle: ThickPavilion 41.6°Culet: NoneDepth 61.7%

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: $13,820 NZD|Low: $9,489 NZD|High: $21,199 NZD|Avg: $13,259 NZD|+1.7%
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
Retailer 18
November 6, 2026
Retailer 15$9,489 NZD
Retailer 4$10,050 NZD
Retailer 9$10,598 NZD
Retailer 6$10,679 NZD
Retailer 16$11,310 NZD
Retailer 2$11,484 NZD
Retailer 8$11,484 NZD
Retailer 17$11,484 NZD
Retailer 12$11,956 NZD
Retailer 3$12,303 NZD
Retailer 5$13,250 NZD
Retailer 10$13,656 NZD
Retailer 1$13,820 NZD
Retailer 11$13,969 NZD
Retailer 18$13,969 NZD
Retailer 13$15,465 NZD
Retailer 14$18,625 NZD
Retailer 7$21,199 NZD

34 data points across 18 retailers

23 retailers$9,489 NZD to $21,217 NZD

A
Cheapest Retailer
-
$9,489 NZD
Retailer 2
-
$9,864 NZD
View
Price last confirmed 82 days ago
B+
Retailer 3
-
$10,015 NZD
View
B+
Retailer 4
-
$10,050 NZD
View
B+
Retailer 5
-
$10,598 NZD
View
Final sale: no returns
B+
Retailer 6
-
$10,679 NZD
View
B+
Retailer 7
-
$11,310 NZD
View
B+
Retailer 8
-
$11,484 NZD
View
Retailer 9
-
$11,484 NZD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$11,484 NZD
View
B+
Retailer 11
-
$11,956 NZD
View
Retailer 12
-
$12,303 NZD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$12,602 NZD
View
B
Retailer 14
-
$12,968 NZD
View
B
Retailer 15
-
$13,250 NZD
View
B+
Retailer 16
-
$13,656 NZD
View
B+
Retailer 17
-
$13,820 NZD
View
Retailer 18
-
$13,969 NZD
View
Price last confirmed 14 days ago
B+
Retailer 19
-
$13,969 NZD
View
B
Retailer 20
-
$15,465 NZD
View
B
Retailer 21
-
$18,625 NZD
View
B
Retailer 22
-
$21,199 NZD
View
Most Expensive
B
Diamond Quarter
1.5SI1H6408683CN · Nov 5
$21,217 NZD
£9,261 GBP
View
22 more retailers have this diamond
Prices start from $9,489 NZDSave up to $11,728 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
$9,489 NZD