Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

GD • D/SI1 • GIA 1493017308

Certificate GIA 1493017308

Diamond specifications and retailer prices

From $802 USD
Save $1,139 USD (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,941 USD at MOH London
View at MOH London

About this 0.51ct natural oval diamond

This 0.51ct natural oval 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 1493017308. Listed at 15 retailers, with prices from $802 to $1,941 at MOH London, a $1,139 spread on the same certified stone. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1493017308
Dimensions6.36 × 4.56 × 2.86 mm
L/W Ratio1.39
Culet sizeNone
Key to symbols
Crystal
Top View
6.36 mm4.56 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1493017308
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $1,941 USD|Low: $671 USD|High: $1,941 USD|Avg: $1,149 USD|+1.1%
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
Retailer 17
October 1, 2026
Retailer 15$802 USD
Retailer 7$864 USD
Retailer 13$931 USD
Retailer 6$957 USD
Retailer 4$1,047 USD
Retailer 9$1,082 USD
Retailer 14$1,100 USD
Retailer 3$1,150 USD
Retailer 16$1,150 USD
Retailer 12$1,187 USD
Retailer 5$1,190 USD
Retailer 8$1,290 USD
Retailer 2$1,353 USD
Retailer 10$1,363 USD
Retailer 17$1,372 USD
Retailer 11$1,596 USD
MOH London$1,941 USD

26 data points across 17 retailers

15 retailers$802 USD to $1,941 USD

B+
Cheapest Retailer
-
$802 USD
B+
Retailer 2
-
$864 USD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
$931 USD
View
B+
Retailer 4
-
$957 USD
View
B
Retailer 5
-
$1,047 USD
View
B
Retailer 6
-
$1,100 USD
View
B
Retailer 7
-
$1,150 USD
View
B
Retailer 8
-
$1,150 USD
View
B
Retailer 9
-
$1,189 USD
£936 GBP
View
B
Retailer 10
-
$1,190 USD
View
Price last confirmed 14 days ago
B
Retailer 11
-
$1,353 USD
€1,289 EUR
View
B
Retailer 12
-
$1,363 USD
A$2,096 AUD
View
B
Retailer 13
-
$1,372 USD
View
B
Retailer 14
-
$1,596 USD
ZAR 25,780 ZAR
View
Most Expensive
B
MOH London
ED38619DB · Oct 1
$1,941 USD
£1,528 GBP
View
14 more retailers have this diamond
Prices start from $802 USDSave up to $1,139 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.

B+
0.51ct Oval
$802 USD