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Round|Natural|IGI

1.70ct D I1 Round Natural Diamond

EX • D/I1 • IGI 632487433

Shape and cutting style on the report: Round brilliant

Certificate IGI 632487433

Diamond specifications and retailer prices

From £3,063 GBP
$4,104 USD
As of November 1, 2026
Save £3,055 GBP (50%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £6,118 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 632487433. Listed at 7 retailers as of October 30, 2026, with prices from £3,063 to £6,118, a £3,055 spread on the same certified stone. NZ Jewellers lists it at £6,118. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
D
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 632487433
Dimensions7.64 × 7.69 × 4.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.64 mm7.69 mm1.70 ctD / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 632487433
Side View
Table 56.0%Crown 35.3°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 62.1%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £6,118 GBP|Low: £3,063 GBP|High: £6,118 GBP|Avg: £4,129 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7£3,063 GBP
Retailer 9£3,187 GBP
Retailer 3£3,511 GBP
Retailer 5£3,511 GBP
Retailer 6£3,511 GBP
Retailer 2£3,956 GBP
Retailer 4£4,052 GBP
Retailer 8£5,775 GBP
NZ Jewellers£6,118 GBP

33 data points across 9 retailers

7 retailers£3,063 GBP to £6,118 GBP

A
Cheapest Retailer
-
£3,063 GBP
$4,104 USD
A
Retailer 2
-
£3,511 GBP
$4,705 USD
View
A
Retailer 3
-
£3,511 GBP
$4,705 USD
View
A
Retailer 4
-
£3,511 GBP
$4,705 USD
View
A
Retailer 5
-
£3,956 GBP
€5,048 EUR
View
B+
Retailer 6
-
£4,052 GBP
$5,429 USD
View
Most Expensive
B
NZ Jewellers
64a09b3a-1a51-4aff-92b3-7f4dcd5fd489 · Oct 30
£6,118 GBP
$8,197 USD
View
6 more retailers have this diamond
Prices start from £3,063 GBPSave up to £3,055 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 Round
£3,063 GBP