Princess|Natural|GIA

1.50ct I SI1 Princess Natural Diamond

GD • I/SI1 • GIA 6451312954

Certificate GIA 6451312954

Diamond specifications and retailer prices

From $7,085 SGD
$5,540 USD
As of November 1, 2026
Save $6,125 SGD (46%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $14,996 SGD 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: $8,599 SGD|Low: $6,249 SGD|High: $13,281 SGD|Avg: $8,815 SGD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 11$6,249 SGD
Retailer 9$7,072 SGD
Retailer 10$7,231 SGD
Retailer 2$7,552 SGD
Retailer 3$8,122 SGD
Retailer 4$8,508 SGD
Retailer 1$8,599 SGD
Retailer 8$8,702 SGD
Retailer 5$9,224 SGD
Retailer 7$11,016 SGD
Retailer 6$13,210 SGD

31 data points across 11 retailers

19 retailers$7,085 SGD to $13,210 SGD

Retailer 1
-
$7,072 SGD
$5,530 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
$7,085 SGD
$5,540 USD
View
B
Retailer 3
-
$7,231 SGD
$5,654 USD
View
B
Retailer 4
-
$7,552 SGD
$5,905 USD
View
B
Retailer 5
-
$7,629 SGD
$5,965 USD
View
Retailer 6
-
$8,122 SGD
$6,351 USD
View
Price last confirmed 35 days ago
Retailer 7
-
$8,122 SGD
$6,351 USD
View
Price last confirmed 34 days ago
B
Retailer 8
-
$8,508 SGD
£5,238 GBP
View
B
Retailer 9
-
$8,599 SGD
£5,294 GBP
View
Retailer 10
-
$8,702 SGD
A$10,469 AUD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$9,042 SGD
$7,070 USD
View
B
Retailer 12
-
$9,042 SGD
$7,070 USD
View
B
Retailer 13
-
$9,174 SGD
$7,173 USD
View
B
Retailer 14
-
$9,224 SGD
€6,869 EUR
View
Retailer 15
-
$9,373 SGD
$7,329 USD
View
Price last confirmed 35 days ago
B
Retailer 16
-
$10,091 SGD
$7,890 USD
View
B
Retailer 17
-
$11,016 SGD
ZAR 139,157 ZAR
View
B
Retailer 18
-
$13,210 SGD
£8,133 GBP
View
Most Expensive
NZ Jewellers
8193489b-a8e8-4827-9c6d-e3f1a35de06d · Sep 30
$14,996 SGD
$11,726 USD
View
Price last confirmed 33 days ago
18 more retailers have this diamond
Prices start from $7,085 SGDSave up to $6,125 SGD

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
$7,085 SGD