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Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

GD • G/SI1 • GIA 1518186849

Certificate GIA 1518186849

Diamond specifications and retailer prices

From $1,199 CAD
$858 USD
As of October 31, 2026
Save $1,195 CAD (50%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,393 CAD at MOH London · As of October 29, 2026
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 G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1518186849. Listed at 13 retailers as of October 29, 2026, with prices from $1,199 to $2,393, a $1,195 spread on the same certified stone. MOH London lists it at $2,393. 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
G
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle38.39°
Pavilion angle39.51°
OriginNatural
Grading LabGIA
CertificateGIA 1518186849
Dimensions6.66 × 4.45 × 2.76 mm
L/W Ratio1.50
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
6.66 mm4.45 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1518186849
Side View
Table 59.0%Crown 38.39°Girdle: MediumPavilion 39.51°Culet: NoneDepth 62.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,393 CAD|Low: $1,099 CAD|High: $4,075 CAD|Avg: $1,894 CAD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 10$1,199 CAD
Retailer 5$1,299 CAD
Retailer 8$1,349 CAD
Retailer 6$1,499 CAD
Retailer 9$1,516 CAD
Retailer 3$1,615 CAD
Retailer 2$1,830 CAD
Retailer 11$1,954 CAD
Retailer 4$2,006 CAD
MOH London$2,393 CAD
Retailer 7$4,075 CAD

35 data points across 11 retailers

13 retailers$1,199 CAD to $2,393 CAD

B
Cheapest Retailer
-
$1,199 CAD
$858 USD
Final sale: no returns
B
Retailer 2
-
$1,299 CAD
$930 USD
View
B
Retailer 3
-
$1,314 CAD
$941 USD
View
B
Retailer 4
-
$1,349 CAD
$966 USD
View
B
Retailer 5
-
$1,486 CAD
$1,064 USD
View
B
Retailer 6
-
$1,499 CAD
$1,073 USD
View
B
Retailer 7
-
$1,516 CAD
$1,085 USD
View
Retailer 8
-
$1,615 CAD
£910 GBP
View
Price last confirmed 31 days ago
B
Retailer 9
-
$1,830 CAD
€1,248 EUR
View
Retailer 10
-
$1,954 CAD
A$2,152 AUD
View
Price last confirmed 27 days ago
B
Retailer 11
-
$2,006 CAD
ZAR 23,199 ZAR
View
Most Expensive
C
MOH London
137ACB074 · Oct 29
$2,393 CAD
£1,349 GBP
View
11 more retailers have this diamond
Prices start from $1,199 CADSave up to $1,195 CAD

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 Oval
$1,199 CAD