Princess|Natural|GIA

0.51ct F SI2 Princess Natural Diamond

EX • F/SI2 • GIA 6491911833

Certificate GIA 6491911833

Diamond specifications and retailer prices

From $409 USD
As of November 6, 2026
Save $881 USD (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,290 USD at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural princess diamond

This 0.51ct natural princess sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6491911833. Listed at 18 retailers as of November 4, 2026, with prices from $409 to $1,290, a $881 spread on the same certified stone. MOH London lists it at $1,290. 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

0.51
Carat
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6491911833
Dimensions4.49 × 4.08 × 3.19 mm
L/W Ratio1.10
Top View
4.49 mm4.08 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6491911833
Side View
Table 74.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 78.1%

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 6
Current: $1,290 USD|Low: $351 USD|High: $1,754 USD|Avg: $690 USD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 2$409 USD
Retailer 4$516 USD
Retailer 14$559 USD
Retailer 12$560 USD
Retailer 10$583 USD
Retailer 5$602 USD
Retailer 13$602 USD
Retailer 7$624 USD
Retailer 6$646 USD
Retailer 15$646 USD
Retailer 9$664 USD
Retailer 8$677 USD
Retailer 3$701 USD
Retailer 11$750 USD
MOH London$1,290 USD
Retailer 16$1,754 USD

44 data points across 16 retailers

18 retailers$409 USD to $1,290 USD

A
Cheapest Retailer
-
$409 USD
A
Retailer 2
-
$473 USD
View
B+
Retailer 3
-
$516 USD
View
Final sale: no returns
B+
Retailer 4
-
$559 USD
View
B+
Retailer 5
-
$560 USD
View
B+
Retailer 6
-
$583 USD
View
Retailer 7
-
$602 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$602 USD
View
B
Retailer 9
-
$646 USD
View
B
Retailer 10
-
$646 USD
View
B+
Retailer 11
-
$664 USD
View
B
Retailer 12
-
$677 USD
View
B
Retailer 13
-
$691 USD
View
B
Retailer 14
-
$701 USD
View
B
Retailer 15
-
$750 USD
View
Most Expensive
B
MOH London
D9BCF3116 · Nov 4
$1,290 USD
£1,016 GBP
View
15 more retailers have this diamond
Prices start from $409 USDSave up to $881 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
$409 USD