CaratHunter
Plans
Princess|Natural|GIA

0.51ct I SI1 Princess Natural Diamond

GD • I/SI1

Diamond specifications and retailer prices

From $821 AUD
As of November 5, 2026
Save $245 AUD (23%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,065 AUD at B2C Jewels · As of November 6, 2026
View at B2C Jewels

About this 0.51ct natural princess diamond

This 0.51ct natural princess sits in the half to three-quarter 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. Listed at 9 retailers as of November 5, 2026, with prices from $821 to $1,065, a $245 spread on the same certified stone. B2C Jewels lists it at $1,065. 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

0.51
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions4.42 × 4.30 × 3.20 mm
L/W Ratio1.03
Top View
4.42 mm4.30 mm0.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 73.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 74.3%

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: Nov 5
Current: $1,065 AUD|Low: $821 AUD|High: $2,842 AUD|Avg: $1,387 AUD
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 26, 2026
Retailer 2$821 AUD
Retailer 3$883 AUD
Retailer 8$883 AUD
Retailer 7$933 AUD
Retailer 5$947 AUD
B2C Jewels$1,065 AUD
Retailer 6$2,334 AUD
Retailer 4$2,842 AUD

12 data points across 8 retailers

9 retailers$821 AUD to $1,065 AUD

Retailer 1
-
$821 AUD
Price last confirmed 53 days ago
B
Retailer 2
-
$821 AUD
View
B
Retailer 3
-
$883 AUD
View
B
Retailer 4
-
$933 AUD
View
Retailer 5
-
$947 AUD
View
Price last confirmed 61 days ago
Most Expensive
C
B2C Jewels
35923281 · Nov 6
$1,065 AUD
$732 USD
View
5 more retailers have this diamond
Prices start from $821 AUDSave up to $245 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
0.51ct Princess
$821 AUD