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Princess|Natural|GIA

0.51ct H SI2 Princess Natural Diamond

GD • H/SI2 • GIA 1565268818

Certificate GIA 1565268818

Diamond specifications and retailer prices

From $404 USD
As of November 4, 2026
Save $95 USD (19%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $499 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1565268818. Listed at 4 retailers as of November 4, 2026, with prices from $404 to $499, a $95 spread on the same certified stone. 77 Diamonds lists it at $499. 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
H
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565268818
Dimensions4.43 × 4.28 × 3.21 mm
L/W Ratio1.04
Culet sizeNone
Key to symbols
Cloud
Top View
4.43 mm4.28 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1565268818
Side View
Table 72.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 74.9%

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 4
Current: $499 USD|Low: $350 USD|High: $504 USD|Avg: $435 USD|+1.7%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$404 USD
Retailer 2$410 USD
Retailer 3$434 USD
77 Diamonds$499 USD

41 data points across 4 retailers

4 retailers$404 USD to $499 USD

B+
Cheapest Retailer
-
$404 USD
Final sale: no returns
B+
Retailer 2
-
$410 USD
View
B+
Retailer 3
-
$434 USD
View
Most Expensive
B+
77 Diamonds
PRICPEGVCYU6R · Nov 6
$499 USD
£393 GBP
View
3 more retailers have this diamond
Prices start from $404 USDSave up to $95 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.

B+
0.51ct Princess
$404 USD