Marquise|Natural|HRD

1.70ct H SI1 Marquise Natural Diamond

ID • H/SI1 • HRD 260000210605

Certificate HRD 260000210605

Diamond specifications and retailer prices

From £6,211 GBP
₹793,810 INR
As of November 2, 2026
Save £5,234 GBP (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £11,445 GBP at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000210605. Listed at 15 retailers as of October 30, 2026, with prices from £6,211 to £11,445, a £5,234 spread on the same certified stone. NZ Jewellers lists it at £11,445. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 260000210605
Dimensions11.58 × 6.08 × 3.70 mm
L/W Ratio1.90
Top View
11.58 mm6.08 mm1.70 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000210605
Side View
Table 59.0%CrownGirdle: THIPavilionCulet: NoneDepth 60.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £11,445 GBP|Low: £6,211 GBP|High: £11,445 GBP|Avg: £8,113 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 2£6,211 GBP
Retailer 11£6,664 GBP
Retailer 10£6,953 GBP
Retailer 12£7,032 GBP
Retailer 13£7,349 GBP
Retailer 8£7,504 GBP
Retailer 6£7,580 GBP
Retailer 14£7,580 GBP
Retailer 7£7,886 GBP
Retailer 4£8,212 GBP
Retailer 3£8,338 GBP
Retailer 5£9,475 GBP
Retailer 9£10,725 GBP
NZ Jewellers£11,445 GBP

24 data points across 14 retailers

15 retailers£6,211 GBP to £11,445 GBP

B+
Cheapest Retailer
-
£6,211 GBP
₹793,810 INR
B+
Retailer 2
-
£6,664 GBP
$8,942 USD
View
B+
Retailer 3
-
£6,953 GBP
$9,330 USD
View
B+
Retailer 4
-
£7,032 GBP
$9,436 USD
View
B+
Retailer 5
-
£7,349 GBP
$9,862 USD
View
B+
Retailer 6
-
£7,504 GBP
View
B+
Retailer 7
-
£7,580 GBP
$10,172 USD
View
B
Retailer 8
-
£7,580 GBP
$10,172 USD
View
Final sale: no returns
B
Retailer 9
-
£7,886 GBP
€10,078 EUR
View
B+
Retailer 10
-
£8,212 GBP
$11,020 USD
View
B+
Retailer 11
-
£8,338 GBP
$11,189 USD
View
B
Retailer 12
-
£8,403 GBP
$11,277 USD
View
B
Retailer 13
-
£9,475 GBP
$12,715 USD
View
B
Retailer 14
-
£10,725 GBP
View
Most Expensive
B
NZ Jewellers
e3c97117-85d7-49aa-857d-97f9825d88c3 · Oct 30
£11,445 GBP
$15,359 USD
View
14 more retailers have this diamond
Prices start from £6,211 GBPSave up to £5,234 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.

B+
1.70ct Marquise
£6,211 GBP