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Oval|Natural|HRD

1.66ct K SI1 Oval Natural Diamond

K/SI1 • HRD 14024677007

Certificate HRD 14024677007

Diamond specifications and retailer prices

From $8,250 CAD
As of November 6, 2026
Save $4,057 CAD (33%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $12,306 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.66ct natural oval diamond

This 1.66ct natural oval sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included) and certified by HRD 14024677007. Listed at 2 retailers as of November 4, 2026, with prices from $8,250 to $12,306, a $4,057 spread on the same certified stone. MOH London lists it at $12,306. 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

1.66
Carat
K
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabHRD
CertificateHRD 14024677007
Dimensions9.11 × 7.18 × 2.94 mm
L/W Ratio1.27
Girdle conditionFaceted
Top View
9.11 mm7.18 mm1.66 ctK / SI1
OriginNatural
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateHRD 14024677007
Side View
Table 58.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 40.9%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 6
Current: $12,306 CAD|Low: $7,607 CAD|High: $12,489 CAD|Avg: $9,413 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$7,607 CAD
Retailer 2$8,250 CAD
MOH London$12,306 CAD

27 data points across 3 retailers

2 retailers$8,250 CAD to $12,306 CAD

C
Cheapest Retailer
-
$8,250 CAD
Most Expensive
C
MOH London
2460F432B · Nov 4
$12,306 CAD
£6,889 GBP
View
1 more retailer has this diamond
Prices start from $8,250 CADSave up to $4,057 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.

C
1.66ct Oval
$8,250 CAD