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Princess|Natural|GIA

1.51ct D SI1 Princess Natural Diamond

EX • D/SI1 • GIA 1555500862

Certificate GIA 1555500862

Diamond specifications and retailer prices

From $8,163 AUD
$5,721 USD
As of November 1, 2026
Save $7,695 AUD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,858 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555500862. Listed at 12 retailers as of November 1, 2026, with prices from $8,163 to $15,858, a $7,695 spread on the same certified stone. MOH London lists it at $15,858. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555500862
Dimensions6.30 × 6.28 × 4.58 mm
L/W Ratio1.00
Key to symbols
Crystal, Needle
Top View
6.30 mm6.28 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555500862
Side View
Table 69.0%CrownGirdle: ThickPavilionCulet: NoneDepth 72.9%

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: $15,858 AUD|Low: $8,163 AUD|High: $18,319 AUD|Avg: $13,220 AUD|-12.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9$8,163 AUD
Retailer 11$8,991 AUD
Retailer 7$9,516 AUD
Retailer 8$10,543 AUD
Retailer 5$10,731 AUD
Retailer 10$11,273 AUD
Retailer 12$11,273 AUD
Retailer 3$11,658 AUD
Retailer 4$12,236 AUD
Retailer 2$12,431 AUD
Retailer 6$13,979 AUD
MOH London$15,858 AUD

44 data points across 12 retailers

12 retailers$8,163 AUD to $15,858 AUD

B+
Cheapest Retailer
-
$8,163 AUD
$5,721 USD
B+
Retailer 2
-
$8,991 AUD
$6,301 USD
View
B+
Retailer 3
-
$9,516 AUD
$6,669 USD
View
B+
Retailer 4
-
$10,543 AUD
$7,389 USD
View
B+
Retailer 5
-
$10,731 AUD
£5,921 GBP
View
B+
Retailer 6
-
$11,273 AUD
$7,900 USD
View
B+
Retailer 7
-
$11,273 AUD
$7,900 USD
View
B+
Retailer 8
-
$11,658 AUD
$8,170 USD
View
Retailer 9
-
$12,236 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$12,431 AUD
€8,297 EUR
View
B
Retailer 11
-
$13,979 AUD
ZAR 158,273 ZAR
View
Most Expensive
B
MOH London
27FACA8C5 · Nov 1
$15,858 AUD
£8,751 GBP
View
11 more retailers have this diamond
Prices start from $8,163 AUDSave up to $7,695 AUD

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+
1.51ct Princess
$8,163 AUD