Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6521073458

Certificate GIA 6521073458

Diamond specifications and retailer prices

From $9,064 CAD
$6,489 USD
As of October 28, 2026
Save $10,125 CAD (53%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $19,189 CAD at NZ Jewellers · As of October 27, 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 H 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 6521073458. Listed at 25 retailers as of October 27, 2026, with prices from $9,064 to $19,189, a $10,125 spread on the same certified stone. NZ Jewellers lists it at $19,189. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.88°
Pavilion angle39.48°
OriginNatural
Grading LabGIA
CertificateGIA 6521073458
Dimensions9.06 × 6.44 × 3.96 mm
L/W Ratio1.41
Top View
9.06 mm6.44 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6521073458
Side View
Table 60.0%Crown 36.88°Girdle: MED-THKPavilion 39.48°Culet: NoneDepth 61.5%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: $19,189 CAD|Low: $8,793 CAD|High: $19,189 CAD|Avg: $11,776 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 7$9,064 CAD
Retailer 11$9,127 CAD
Retailer 6$9,594 CAD
Retailer 19$9,594 CAD
Retailer 8$9,604 CAD
Retailer 9$9,674 CAD
Retailer 10$10,331 CAD
Retailer 17$10,394 CAD
Retailer 18$10,554 CAD
Retailer 2$10,825 CAD
Retailer 12$10,873 CAD
Retailer 4$10,998 CAD
Retailer 5$11,001 CAD
Retailer 3$11,992 CAD
Retailer 14$12,516 CAD
Retailer 16$13,969 CAD
Retailer 15$16,011 CAD
Retailer 13$16,075 CAD
NZ Jewellers$19,189 CAD

28 data points across 19 retailers

25 retailers$9,064 CAD to $19,189 CAD

B+
Cheapest Retailer
-
$9,064 CAD
$6,489 USD
B+
Retailer 2
-
$9,127 CAD
$6,534 USD
View
B+
Retailer 3
-
$9,594 CAD
$6,868 USD
View
B+
Retailer 4
-
$9,594 CAD
$6,868 USD
View
Final sale: no returns
B+
Retailer 5
-
$9,604 CAD
$6,875 USD
View
B+
Retailer 6
-
$9,674 CAD
$6,925 USD
View
Retailer 7
-
$10,217 CAD
$7,314 USD
View
Price last confirmed 7 days ago
B
Retailer 8
-
$10,331 CAD
$7,396 USD
View
B
Retailer 9
-
$10,394 CAD
$7,441 USD
View
B+
Retailer 10
-
$10,554 CAD
$7,555 USD
View
B+
Retailer 11
-
$10,825 CAD
£6,102 GBP
View
B+
Retailer 12
-
$10,873 CAD
£6,129 GBP
View
Retailer 13
-
$10,998 CAD
A$12,112 AUD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
$11,001 CAD
$7,875 USD
View
Retailer 15
-
$11,001 CAD
$7,875 USD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$11,049 CAD
$7,910 USD
View
B+
Retailer 17
-
$11,049 CAD
$7,910 USD
View
B
Retailer 18
-
$11,427 CAD
$8,180 USD
View
B
Retailer 19
-
$11,583 CAD
$8,292 USD
View
B
Retailer 20
-
$11,992 CAD
$8,585 USD
View
B
Retailer 21
-
$12,516 CAD
€8,533 EUR
View
B
Retailer 22
-
$13,969 CAD
ZAR 161,553 ZAR
View
B
Retailer 23
-
$16,011 CAD
£9,025 GBP
View
B
Retailer 24
-
$16,075 CAD
£9,061 GBP
View
Most Expensive
B
NZ Jewellers
98e39236-a9fd-413f-9a9e-022d36809849 · Oct 27
$19,189 CAD
$13,737 USD
View
24 more retailers have this diamond
Prices start from $9,064 CADSave up to $10,125 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
$9,064 CAD