Princess|Natural|GIA

0.51ct D SI1 Princess Natural Diamond

GD • D/SI1 • GIA 7518159445

Certificate GIA 7518159445

Diamond specifications and retailer prices

From $478 USD
As of November 4, 2026
Save $161 USD (25%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $639 USD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.51ct natural princess diamond

This 0.51ct natural princess sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7518159445. Listed at 6 retailers as of November 4, 2026, with prices from $478 to $639, a $161 spread on the same certified stone. 77 Diamonds lists it at $639. 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
D
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7518159445
Dimensions4.36 × 4.33 × 3.14 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather
Top View
4.36 mm4.33 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7518159445
Side View
Table 69.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 72.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $639 USD|Low: $428 USD|High: $820 USD|Avg: $644 USD|-7.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$478 USD
Retailer 2$487 USD
Retailer 5$516 USD
Retailer 4$577 USD
Retailer 7$602 USD
77 Diamonds$639 USD
Retailer 6$790 USD
Retailer 8$820 USD
Retailer 9$820 USD

42 data points across 9 retailers

6 retailers$478 USD to $639 USD

A
Cheapest Retailer
-
$478 USD
Final sale: no returns
A
Retailer 2
-
$487 USD
View
A
Retailer 3
-
$516 USD
View
B+
Retailer 4
-
$577 USD
View
Retailer 5
-
$602 USD
View
Price last confirmed 82 days ago
Most Expensive
B+
77 Diamonds
PRICPTNWK6DVQ · Nov 6
$639 USD
£503 GBP
View
5 more retailers have this diamond
Prices start from $478 USDSave up to $161 USD

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
0.51ct Princess
$478 USD