Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 1553375957

Certificate GIA 1553375957

Diamond specifications and retailer prices

From €478 EUR
As of November 5, 2026
Save €423 EUR (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €902 EUR at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded F 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 1553375957. Listed at 11 retailers as of November 5, 2026, with prices from €478 to €902, a €423 spread on the same certified stone. Frank Darling lists it at €902. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle37.75°
OriginNatural
Grading LabGIA
CertificateGIA 1553375957
Dimensions6.82 × 4.35 × 2.62 mm
L/W Ratio1.57
Culet sizeNone
Top View
6.82 mm4.35 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553375957
Side View
Table 60.0%Crown 38.5°Girdle: THN-VTKPavilion 37.75°Culet: NoneDepth 60.1%

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 5
Current: €902 EUR|Low: €476 EUR|High: €944 EUR|Avg: €697 EUR|-4.5%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4€478 EUR
Retailer 10€520 EUR
Retailer 8€562 EUR
Retailer 3€604 EUR
Retailer 5€677 EUR
Retailer 7€729 EUR
Retailer 6€732 EUR
Retailer 2€764 EUR
Retailer 9€785 EUR
Frank Darling€902 EUR

32 data points across 10 retailers

11 retailers€478 EUR to €902 EUR

A
Cheapest Retailer
-
€478 EUR
A
Retailer 2
-
€520 EUR
View
A
Retailer 3
-
€562 EUR
View
A
Retailer 4
-
€604 EUR
View
B+
Retailer 5
-
€673 EUR
View
B+
Retailer 6
-
€677 EUR
View
B+
Retailer 7
-
€729 EUR
View
B+
Retailer 8
-
€732 EUR
View
B+
Retailer 9
-
€764 EUR
View
B+
Retailer 10
-
€785 EUR
View
Most Expensive
B+
Frank Darling
2649521HK · Nov 6
€902 EUR
$1,007 USD
View
10 more retailers have this diamond
Prices start from €478 EURSave up to €423 EUR

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 Oval
€478 EUR