Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 1515314942

Certificate GIA 1515314942

Diamond specifications and retailer prices

From $6,520 CAD
₹444,516 INR
As of October 31, 2026
Save $6,232 CAD (49%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $14,399 CAD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded J 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 1515314942. Listed at 21 retailers as of October 29, 2026, with a 96% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.19°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1515314942
Dimensions9.00 × 6.43 × 4.04 mm
L/W Ratio1.40
Culet sizeNone
Top View
9.00 mm6.43 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1515314942
Side View
Table 60.0%Crown 37.19°Girdle: STK-THKPavilion 41°Culet: NoneDepth 62.7%

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: $14,399 CAD|Low: $6,520 CAD|High: $14,399 CAD|Avg: $9,444 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 5$6,520 CAD
Retailer 3$7,504 CAD
Retailer 10$7,946 CAD
Retailer 6$8,259 CAD
Retailer 11$8,555 CAD
Retailer 12$8,609 CAD
Retailer 7$9,408 CAD
Retailer 4$9,622 CAD
Retailer 2$10,577 CAD
Retailer 9$12,474 CAD
Retailer 8$12,752 CAD
NZ Jewellers$14,399 CAD

33 data points across 12 retailers

21 retailers$6,520 CAD to $12,752 CAD

B+
Cheapest Retailer
-
$6,520 CAD
₹444,516 INR
B+
Retailer 2
-
$7,285 CAD
$5,215 USD
View
B
Retailer 3
-
$7,504 CAD
$5,372 USD
View
B
Retailer 4
-
$7,508 CAD
$5,375 USD
View
B
Retailer 5
-
$7,575 CAD
$5,423 USD
View
B+
Retailer 6
-
$7,946 CAD
$5,688 USD
View
Final sale: no returns
B+
Retailer 7
-
$8,018 CAD
$5,740 USD
View
B+
Retailer 8
-
$8,259 CAD
£4,656 GBP
View
Retailer 9
-
$8,555 CAD
A$9,422 AUD
View
Price last confirmed 27 days ago
Retailer 10
-
$8,609 CAD
$6,163 USD
View
Price last confirmed 39 days ago
Retailer 11
-
$8,609 CAD
$6,163 USD
View
Price last confirmed 23 days ago
Retailer 12
-
$8,609 CAD
$6,163 USD
View
Price last confirmed 19 days ago
B
Retailer 13
-
$8,828 CAD
$6,320 USD
View
B
Retailer 14
-
$9,408 CAD
€6,414 EUR
View
B
Retailer 15
-
$9,622 CAD
$6,888 USD
View
Retailer 16
-
$9,933 CAD
$7,111 USD
View
Price last confirmed 39 days ago
Retailer 17
-
$9,933 CAD
$7,111 USD
View
Price last confirmed 22 days ago
B
Retailer 18
-
$10,577 CAD
ZAR 122,326 ZAR
View
B
Retailer 19
-
$12,474 CAD
$8,930 USD
View
B
Retailer 20
-
$12,752 CAD
£7,188 GBP
View
Most Expensive
NZ Jewellers
27ef9794-3a8d-43b7-9091-dffc4b51fe26 · Sep 30
$14,399 CAD
$10,308 USD
View
Price last confirmed 31 days ago
20 more retailers have this diamond
Prices start from $6,520 CADSave up to $6,232 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+
1.51ct Oval
$6,520 CAD