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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 €5,253 EUR
As of November 6, 2026
Save €2,583 EUR (33%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €7,836 EUR 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 €5,253 to €7,836, a €2,583 spread on the same certified stone. MOH London lists it at €7,836. 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
Colour
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: €7,836 EUR|Low: €4,844 EUR|High: €7,952 EUR|Avg: €5,994 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3€4,844 EUR
Retailer 2€5,253 EUR
MOH London€7,836 EUR

27 data points across 3 retailers

2 retailers€5,253 EUR to €7,836 EUR

C
Cheapest Retailer
-
€5,253 EUR
Most Expensive
C
MOH London
2460F432B · Nov 4
€7,836 EUR
£6,889 GBP
View
1 more retailer has this diamond
Prices start from €5,253 EURSave up to €2,583 EUR

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
€5,253 EUR