Oval|Natural|GIA

1.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 6525635517

Certificate GIA 6525635517

Diamond specifications and retailer prices

From $9,173 CAD
HK$51,300 HKD
As of November 1, 2026
Save $8,043 CAD (47%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $20,660 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6525635517. Listed at 19 retailers as of November 1, 2026, with a 88% 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
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6525635517
Dimensions8.89 × 6.30 × 4.04 mm
L/W Ratio1.41
Top View
8.89 mm6.30 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6525635517
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 64.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $17,216 CAD|Low: $9,173 CAD|High: $17,423 CAD|Avg: $12,431 CAD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$9,173 CAD
Retailer 2$10,548 CAD
Retailer 3$10,677 CAD
Retailer 11$11,343 CAD
Retailer 10$11,401 CAD
Retailer 5$11,420 CAD
Retailer 4$11,558 CAD
Retailer 9$11,701 CAD
Retailer 8$13,498 CAD
Retailer 6$15,176 CAD
Retailer 1$17,216 CAD

36 data points across 11 retailers

19 retailers$9,173 CAD to $17,216 CAD

A
Cheapest Retailer
-
$9,173 CAD
HK$51,300 HKD
Retailer 2
-
$10,462 CAD
SGD 10,121 SGD
View
Price last confirmed 20 days ago
B+
Retailer 3
-
$10,548 CAD
$7,551 USD
View
B+
Retailer 4
-
$10,677 CAD
$7,643 USD
View
B+
Retailer 5
-
$11,266 CAD
A$12,408 AUD
View
B+
Retailer 6
-
$11,343 CAD
$8,120 USD
View
B
Retailer 7
-
$11,401 CAD
$8,162 USD
View
Final sale: no returns
Retailer 8
-
$11,403 CAD
$8,163 USD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
$11,420 CAD
£6,437 GBP
View
B+
Retailer 10
-
$11,558 CAD
£6,515 GBP
View
Retailer 11
-
$11,701 CAD
A$12,887 AUD
View
Price last confirmed 10 days ago
Retailer 12
-
$12,353 CAD
$8,843 USD
View
Price last confirmed 25 days ago
B+
Retailer 13
-
$12,371 CAD
$8,856 USD
View
Retailer 14
-
$12,543 CAD
$8,979 USD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
$13,498 CAD
€9,203 EUR
View
Retailer 16
-
$14,253 CAD
$10,203 USD
View
Price last confirmed 23 days ago
B
Retailer 17
-
$15,176 CAD
ZAR 175,505 ZAR
View
B
Retailer 18
-
$17,216 CAD
£9,704 GBP
View
Most Expensive
NZ Jewellers
e9163b27-0ca1-4f3a-9cca-51d1a823de61 · Sep 30
$20,660 CAD
$14,790 USD
View
Price last confirmed 32 days ago
18 more retailers have this diamond
Prices start from $9,173 CADSave up to $8,043 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.

A
1.51ct Oval
$9,173 CAD