Princess|Natural|GIA

1.51ct K SI1 Princess Natural Diamond

ID • K/SI1 • GIA 6541288643

Certificate GIA 6541288643

Diamond specifications and retailer prices

From $4,190 SGD
As of November 5, 2026
Save $3,077 SGD (42%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,591 SGD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541288643. Listed at 10 retailers as of November 4, 2026, with a 73% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6541288643
Dimensions6.16 × 6.09 × 4.47 mm
L/W Ratio1.01
Top View
6.16 mm6.09 mm1.51 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6541288643
Side View
Table 71.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 73.5%

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 5
Current: $5,072 SGD|Low: $4,190 SGD|High: $7,374 SGD|Avg: $5,288 SGD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$4,190 SGD
Retailer 2$4,508 SGD
Retailer 1$5,072 SGD
Retailer 3$5,317 SGD
Retailer 4$7,267 SGD

45 data points across 5 retailers

10 retailers$4,190 SGD to $7,267 SGD

A
Cheapest Retailer
-
$4,190 SGD
Retailer 2
-
$4,357 SGD
View
Price last confirmed 29 days ago
Retailer 3
-
$4,357 SGD
View
Price last confirmed 29 days ago
B+
Retailer 4
-
$4,508 SGD
View
Retailer 5
-
$4,524 SGD
View
Price last confirmed 38 days ago
Retailer 6
-
$5,027 SGD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$5,072 SGD
View
B
Retailer 8
-
$5,317 SGD
View
B
Retailer 9
-
$7,267 SGD
View
Most Expensive
NZ Jewellers
de7eb8e7-113a-4d8f-8219-4a1c30751ab7 · Sep 30
$7,591 SGD
$5,943 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $4,190 SGDSave up to $3,077 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.

A
1.51ct Princess
$4,190 SGD