CaratHunter
Plans
Round|Natural|IGI

1.70ct I I1 Round Natural Diamond

VG • I/I1 • IGI 689598730

Shape and cutting style on the report: Round brilliant

Certificate IGI 689598730

Diamond specifications and retailer prices

From £1,767 GBP
$2,367 USD
As of November 1, 2026
Save £2,358 GBP (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,124 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 I colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 689598730. Listed at 7 retailers as of October 30, 2026, with prices from £1,767 to £4,124, a £2,358 spread on the same certified stone. NZ Jewellers lists it at £4,124. 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

1.70
Carat
I
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 689598730
Dimensions7.45 × 7.49 × 4.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
7.45 mm7.49 mm1.70 ctI / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 689598730
Side View
Table 57.0%Crown 38°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 63.3%

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 1
Current: £2,453 GBP|Low: £1,298 GBP|High: £2,469 GBP|Avg: £1,885 GBP|+2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 4£1,298 GBP
Retailer 3£1,767 GBP
Retailer 2£2,077 GBP
Retailer 1£2,453 GBP

22 data points across 4 retailers

7 retailers£1,767 GBP to £4,124 GBP

B+
Cheapest Retailer
-
£1,767 GBP
$2,367 USD
B+
Retailer 2
-
£1,973 GBP
$2,643 USD
View
B+
Retailer 3
-
£1,973 GBP
$2,643 USD
View
B+
Retailer 4
-
£2,049 GBP
$2,745 USD
View
B+
Retailer 5
-
£2,077 GBP
$2,783 USD
View
B+
Retailer 6
-
£2,453 GBP
€3,130 EUR
View
Most Expensive
B
NZ Jewellers
e58ff299-b409-4e7c-bbc8-a0e6a65c6087 · Oct 30
£4,124 GBP
$5,526 USD
View
6 more retailers have this diamond
Prices start from £1,767 GBPSave up to £2,358 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 Round
£1,767 GBP