Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 1553375957

Certificate GIA 1553375957

Diamond specifications and retailer prices

From $534 USD
As of November 5, 2026
Save $473 USD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,007 USD 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 $534 to $1,007, a $473 spread on the same certified stone. Frank Darling lists it at $1,007. 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
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: $1,007 USD|Low: $531 USD|High: $1,054 USD|Avg: $778 USD|-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$534 USD
Retailer 10$581 USD
Retailer 8$627 USD
Retailer 3$674 USD
Retailer 5$756 USD
Retailer 7$814 USD
Retailer 6$817 USD
Retailer 2$853 USD
Retailer 9$877 USD
Frank Darling$1,007 USD

32 data points across 10 retailers

11 retailers$534 USD to $1,007 USD

A
Cheapest Retailer
-
$534 USD
A
Retailer 2
-
$581 USD
View
A
Retailer 3
-
$627 USD
View
A
Retailer 4
-
$674 USD
View
B+
Retailer 5
-
$751 USD
View
B+
Retailer 6
-
$756 USD
View
B+
Retailer 7
-
$814 USD
View
B+
Retailer 8
-
$817 USD
View
B+
Retailer 9
-
$853 USD
View
B+
Retailer 10
-
$877 USD
View
Most Expensive
B+
Frank Darling
2649521HK · Nov 6
$1,007 USD
View
10 more retailers have this diamond
Prices start from $534 USDSave up to $473 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 Oval
$534 USD