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Marquise|Natural|HRD

1.70ct K SI2 Marquise Natural Diamond

ID • K/SI2 • HRD 250000201330

Certificate HRD 250000201330

Diamond specifications and retailer prices

From £1,640 GBP
As of November 4, 2026
Save £2,496 GBP (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,136 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two 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 250000201330. Listed at 13 retailers as of November 3, 2026, with prices from £1,640 to £4,136, a £2,496 spread on the same certified stone. NZ Jewellers lists it at £4,136. 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

1.70
Carat
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabHRD
CertificateHRD 250000201330
Dimensions11.85 × 6.19 × 3.92 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Top View
11.85 mm6.19 mm1.70 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateHRD 250000201330
Side View
Table 62.0%CrownGirdle: MediumPavilionCulet: NoneDepth 63.3%

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 4
Current: £4,136 GBP|Low: £1,640 GBP|High: £4,418 GBP|Avg: £2,463 GBP|-6.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 5£1,640 GBP
Retailer 9£1,856 GBP
Retailer 2£1,893 GBP
Retailer 7£1,978 GBP
Retailer 11£1,978 GBP
Retailer 8£2,055 GBP
Retailer 10£2,152 GBP
Retailer 3£2,282 GBP
Retailer 6£2,459 GBP
Retailer 4£3,456 GBP
NZ Jewellers£4,136 GBP

41 data points across 11 retailers

13 retailers£1,640 GBP to £4,136 GBP

A
Cheapest Retailer
-
£1,640 GBP
A
Retailer 2
-
£1,856 GBP
View
A
Retailer 3
-
£1,893 GBP
View
Retailer 4
-
£1,978 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£1,978 GBP
View
B+
Retailer 6
-
£2,010 GBP
View
A
Retailer 7
-
£2,055 GBP
View
Retailer 8
-
£2,096 GBP
View
Price last confirmed 21 days ago
A
Retailer 9
-
£2,152 GBP
View
A
Retailer 10
-
£2,282 GBP
View
A
Retailer 11
-
£2,459 GBP
View
B+
Retailer 12
-
£3,456 GBP
View
Most Expensive
B+
NZ Jewellers
bee72a7a-d2c9-4e86-b99f-dbf4a9f4c8c7 · Nov 3
£4,136 GBP
$5,536 USD
View
12 more retailers have this diamond
Prices start from £1,640 GBPSave up to £2,496 GBP

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
1.70ct Marquise
£1,640 GBP