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Marquise|Natural|HRD

1.21ct K SI2 Marquise Natural Diamond

ID • K/SI2 • HRD 260000155347

Certificate HRD 260000155347

Diamond specifications and retailer prices

From €1,343 EUR
As of November 5, 2026
Save €1,009 EUR (43%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €3,399 EUR at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000155347. Listed at 7 retailers as of November 2, 2026, with a 75% 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

1.21
Carat
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.62°
Pavilion angle40.2°
OriginNatural
Grading LabHRD
CertificateHRD 260000155347
Dimensions10.12 × 5.53 × 3.63 mm
L/W Ratio1.83
Girdle conditionThick
Top View
10.12 mm5.53 mm1.21 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateHRD 260000155347
Side View
Table 58.0%Crown 39.62°GirdlePavilion 40.2°CuletDepth 65.7%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: €2,352 EUR|Low: €1,343 EUR|High: €2,471 EUR|Avg: €1,901 EUR|-4.7%
Retailer 1
Retailer 2
November 1, 2026
Retailer 2€1,343 EUR
Retailer 1€2,352 EUR

10 data points across 2 retailers

7 retailers€1,343 EUR to €2,352 EUR

A
Cheapest Retailer
-
€1,343 EUR
Retailer 2
-
€1,394 EUR
View
Price last confirmed 46 days ago
Retailer 3
-
€1,394 EUR
View
Price last confirmed 30 days ago
Retailer 4
-
€1,458 EUR
View
Price last confirmed 37 days ago
B+
Retailer 5
-
€2,352 EUR
View
Retailer 6
-
€3,399 EUR
View
Price last confirmed 40 days ago
Most Expensive
NZ Jewellers
608ce706-e35a-402c-a352-43aca8763f42 · Sep 29
€3,399 EUR
$3,795 USD
View
Price last confirmed 38 days ago
6 more retailers have this diamond
Prices start from €1,343 EURSave up to €1,009 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.

A
1.21ct Marquise
€1,343 EUR