Princess|Natural|GIA

1.50ct I SI1 Princess Natural Diamond

GD • I/SI1 • GIA 6451312954

Certificate GIA 6451312954

Diamond specifications and retailer prices

From $9,846 NZD
$5,540 USD
As of November 1, 2026
Save $8,511 NZD (46%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $20,841 NZD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct natural princess diamond

This 1.5ct natural princess sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6451312954. Listed at 19 retailers as of November 1, 2026, with a 86% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.6°
Pavilion angle38.3°
OriginNatural
Grading LabGIA
CertificateGIA 6451312954
Dimensions6.25 × 6.19 × 4.50 mm
L/W Ratio1.01
Top View
6.25 mm6.19 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6451312954
Side View
Table 71.0%Crown 48.6°Girdle: 3.2Pavilion 38.3°Culet: NoneDepth 72.6%

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: Nov 1
Current: $11,823 NZD|Low: $8,684 NZD|High: $18,457 NZD|Avg: $12,258 NZD|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 11$8,684 NZD
Retailer 9$9,828 NZD
Retailer 10$10,049 NZD
Retailer 2$10,495 NZD
Retailer 3$11,288 NZD
Retailer 1$11,823 NZD
Retailer 5$11,950 NZD
Retailer 8$12,094 NZD
Retailer 4$12,819 NZD
Retailer 7$15,309 NZD
Retailer 6$18,358 NZD

30 data points across 11 retailers

19 retailers$9,846 NZD to $18,358 NZD

Retailer 1
-
$9,828 NZD
$5,530 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
$9,846 NZD
$5,540 USD
View
B
Retailer 3
-
$10,049 NZD
$5,654 USD
View
B
Retailer 4
-
$10,495 NZD
$5,905 USD
View
B
Retailer 5
-
$10,602 NZD
$5,965 USD
View
Retailer 6
-
$11,288 NZD
$6,351 USD
View
Price last confirmed 35 days ago
Retailer 7
-
$11,288 NZD
$6,351 USD
View
Price last confirmed 34 days ago
B
Retailer 8
-
$11,823 NZD
£5,238 GBP
View
B
Retailer 9
-
$11,950 NZD
£5,294 GBP
View
Retailer 10
-
$12,094 NZD
A$10,469 AUD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$12,566 NZD
$7,070 USD
View
B
Retailer 12
-
$12,566 NZD
$7,070 USD
View
B
Retailer 13
-
$12,749 NZD
$7,173 USD
View
B
Retailer 14
-
$12,819 NZD
€6,869 EUR
View
Retailer 15
-
$13,026 NZD
$7,329 USD
View
Price last confirmed 35 days ago
B
Retailer 16
-
$14,023 NZD
$7,890 USD
View
B
Retailer 17
-
$15,309 NZD
ZAR 139,157 ZAR
View
B
Retailer 18
-
$18,358 NZD
£8,133 GBP
View
Most Expensive
NZ Jewellers
8193489b-a8e8-4827-9c6d-e3f1a35de06d · Sep 30
$20,841 NZD
$11,726 USD
View
Price last confirmed 33 days ago
18 more retailers have this diamond
Prices start from $9,846 NZDSave up to $8,511 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 Princess
$9,846 NZD