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1.71ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 792678092

Shape and cutting style on the report: Round brilliant

Certificate IGI 792678092

Diamond specifications and retailer prices

From £1,488 GBP
SGD 2,694 SGD
As of October 29, 2026
Save £2,692 GBP (64%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,179 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.71ct natural round diamond

This 1.71ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 792678092. Listed at 10 retailers as of October 28, 2026, with prices from £1,488 to £4,179, a £2,692 spread on the same certified stone. Rare Carat lists it at £4,179. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 792678092
Dimensions7.56 × 7.61 × 4.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.56 mm7.61 mm1.71 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 792678092
Side View
Table 58.0%Crown 36.1°Girdle: MED-STKPavilion 40.8°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: Oct 29
Current: £4,179 GBP|Low: £1,488 GBP|High: £5,286 GBP|Avg: £2,574 GBP|-20.9%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 4£1,488 GBP
Retailer 7£1,518 GBP
Retailer 3£1,747 GBP
Retailer 5£2,190 GBP
Retailer 2£2,218 GBP
Retailer 9£2,449 GBP
Retailer 6£3,081 GBP
Retailer 8£3,085 GBP
Rare Carat£4,179 GBP

36 data points across 9 retailers

10 retailers£1,488 GBP to £4,179 GBP

A
Cheapest Retailer
-
£1,488 GBP
SGD 2,694 SGD
A
Retailer 2
-
£1,747 GBP
$2,341 USD
View
A
Retailer 3
-
£1,776 GBP
$2,380 USD
View
A
Retailer 4
-
£2,190 GBP
$2,934 USD
View
A
Retailer 5
-
£2,218 GBP
View
A
Retailer 6
-
£2,449 GBP
$3,281 USD
View
A
Retailer 7
-
£3,081 GBP
$4,128 USD
View
B+
Retailer 8
-
£3,582 GBP
$4,800 USD
View
Retailer 9
-
£4,105 GBP
$5,500 USD
View
Price last confirmed 23 days ago
Most Expensive
B+
Rare Carat
150396_823672069 · Oct 28
£4,179 GBP
$5,600 USD
View
9 more retailers have this diamond
Prices start from £1,488 GBPSave up to £2,692 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
£1,488 GBP