CaratHunter
Plans
Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 6515090345

Certificate GIA 6515090345

Diamond specifications and retailer prices

From $1,151 CAD
$824 USD
As of October 31, 2026
Save $1,384 CAD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,535 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6515090345. Listed at 21 retailers as of October 29, 2026, with prices from $1,151 to $2,535, a $1,384 spread on the same certified stone. MOH London lists it at $2,535. 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.03°
Pavilion angle39.22°
OriginNatural
Grading LabGIA
CertificateGIA 6515090345
Dimensions6.18 × 4.48 × 2.77 mm
L/W Ratio1.38
Top View
6.18 mm4.48 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515090345
Side View
Table 58.0%Crown 40.03°Girdle: MED-THKPavilion 39.22°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,535 CAD|Low: $960 CAD|High: $2,553 CAD|Avg: $1,572 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
November 1, 2026
Retailer 9$1,151 CAD
Retailer 3$1,224 CAD
Retailer 7$1,229 CAD
Retailer 8$1,247 CAD
Retailer 10$1,369 CAD
Retailer 2$1,387 CAD
Retailer 6$1,467 CAD
Retailer 4$1,936 CAD
Retailer 11$2,055 CAD
Retailer 5$2,125 CAD
MOH London$2,535 CAD

32 data points across 11 retailers

21 retailers$1,151 CAD to $2,535 CAD

B+
Cheapest Retailer
-
$1,151 CAD
$824 USD
Final sale: no returns
B+
Retailer 2
-
$1,224 CAD
$876 USD
View
B+
Retailer 3
-
$1,229 CAD
$880 USD
View
Retailer 4
-
$1,247 CAD
$893 USD
View
Price last confirmed 33 days ago
B+
Retailer 5
-
$1,247 CAD
$893 USD
View
B+
Retailer 6
-
$1,261 CAD
$903 USD
View
B+
Retailer 7
-
$1,369 CAD
$980 USD
View
B+
Retailer 8
-
$1,387 CAD
£782 GBP
View
B+
Retailer 9
-
$1,388 CAD
$994 USD
View
Retailer 10
-
$1,439 CAD
$1,030 USD
View
Price last confirmed 32 days ago
B
Retailer 11
-
$1,439 CAD
$1,030 USD
View
B
Retailer 12
-
$1,467 CAD
$1,050 USD
View
B
Retailer 13
-
$1,467 CAD
$1,050 USD
View
B
Retailer 14
-
$1,467 CAD
$1,050 USD
View
B
Retailer 15
-
$1,523 CAD
$1,090 USD
View
B
Retailer 16
-
$1,936 CAD
€1,320 EUR
View
Retailer 17
-
$2,055 CAD
A$2,263 AUD
View
Price last confirmed 32 days ago
B
Retailer 18
-
$2,125 CAD
ZAR 24,580 ZAR
View
Most Expensive
B
MOH London
3B8888A20 · Oct 29
$2,535 CAD
£1,429 GBP
View
18 more retailers have this diamond
Prices start from $1,151 CADSave up to $1,384 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
$1,151 CAD