CaratHunter
Plans
Princess|Natural|GIA

1.56ct I SI1 Princess Natural Diamond

ID • I/SI1 • GIA 42

Certificate GIA 42

Diamond specifications and retailer prices

From $9,607 SGD
$7,515 USD
As of October 31, 2026
Save $2,478 SGD (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $12,085 SGD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.56ct natural princess diamond

This 1.56ct 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of October 31, 2026, with prices from $9,607 to $12,085, a $2,478 spread on the same certified stone. Blue Nile lists it at $12,085. 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

1.56
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 42
Dimensions6.69 × 6.61 × 4.36 mm
L/W Ratio1.01
Top View
6.69 mm6.61 mm1.56 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 42
Side View
Table 70.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $12,085 SGD|Low: $9,483 SGD|High: $12,085 SGD|Avg: $10,658 SGD
Blue Nile
Retailer 2
Retailer 3
September 23, 2026
Retailer 2$9,607 SGD
Retailer 3$10,448 SGD
Blue Nile$12,085 SGD

3 data points across 3 retailers

3 retailers$9,607 SGD to $12,085 SGD

B
Cheapest Retailer
-
$9,607 SGD
$7,515 USD
B
Retailer 2
-
$10,448 SGD
$8,173 USD
View
Most Expensive
B
Blue Nile
8523759 · Oct 31
$12,085 SGD
$9,453 USD
View
2 more retailers have this diamond
Prices start from $9,607 SGDSave up to $2,478 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
1.56ct Princess
$9,607 SGD