CaratHunter
Plans
Round|Natural|IGI

1.71ct L SI2 Round Natural Diamond

EX • L/SI2 • IGI 708509517

Shape and cutting style on the report: Round brilliant

Certificate IGI 708509517

Diamond specifications and retailer prices

From £707 GBP
As of November 5, 2026
Save £439 GBP (38%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,147 GBP at Moon Ocean · As of November 6, 2026
View at Moon Ocean

About this 1.71ct natural round diamond

This 1.71ct natural round sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 708509517. Listed at 4 retailers as of November 5, 2026, with prices from £707 to £1,147, a £439 spread on the same certified stone. Moon Ocean lists it at £1,147. 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

1.71
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 708509517
Dimensions7.49 × 7.56 × 4.77 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.49 mm7.56 mm1.71 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 708509517
Side View
Table 56.0%Crown 36.4°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 63.3%

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 5
Current: £1,147 GBP|Low: £707 GBP|High: £1,169 GBP|Avg: £981 GBP|-1.5%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2£707 GBP
Retailer 3£877 GBP
Retailer 4£1,014 GBP
Moon Ocean£1,147 GBP
Retailer 5£1,152 GBP

45 data points across 5 retailers

4 retailers£707 GBP to £1,147 GBP

A
Cheapest Retailer
-
£707 GBP
B+
Retailer 2
-
£877 GBP
View
B+
Retailer 3
-
£1,014 GBP
View
Most Expensive
B+
Moon Ocean
NVN-33BC400CB-517 · Nov 6
£1,147 GBP
View
3 more retailers have this diamond
Prices start from £707 GBPSave up to £439 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
1.71ct Round
£707 GBP