CaratHunter
Plans
Round|Lab Grown|IGI

1.71ct K VS1 Round Lab Grown Diamond

EX • K/VS1 • IGI LG476186879

Shape and cutting style on the report: Round brilliant

Certificate IGI LG476186879

Diamond specifications and retailer prices

From £1,823 GBP
As of November 5, 2026
Save £2,077 GBP (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £5,648 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG476186879 or 476186879. Listed at 10 retailers as of November 3, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476186879
Dimensions7.56 × 7.61 × 4.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.56 mm7.61 mm1.71 ctK / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG476186879
Side View
Table 60.0%Crown 34.7°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.7%

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 5
Current: £5,648 GBP|Low: £1,750 GBP|High: £5,739 GBP|Avg: £3,199 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6£1,823 GBP
Retailer 9£1,984 GBP
Retailer 7£2,115 GBP
Retailer 4£2,236 GBP
Retailer 11£2,650 GBP
Retailer 10£2,907 GBP
Retailer 5£3,171 GBP
Retailer 8£3,297 GBP
Retailer 2£3,900 GBP
Retailer 3£4,734 GBP
MOH London£5,648 GBP

21 data points across 11 retailers

10 retailers£1,823 GBP to £3,900 GBP

B+
Cheapest Retailer
-
£1,823 GBP
B
Retailer 2
-
£1,984 GBP
View
Retailer 3
-
£2,115 GBP
View
Price last confirmed 25 days ago
B
Retailer 4
-
£2,115 GBP
View
B
Retailer 5
-
£2,236 GBP
View
B
Retailer 6
-
£2,907 GBP
View
B
Retailer 7
-
£3,171 GBP
View
B
Retailer 8
-
£3,297 GBP
View
B
Retailer 9
-
£3,900 GBP
View
Most Expensive
MOH London
LG476186879 · Nov 5
£5,648 GBP
View
Price under review
9 more retailers have this diamond
Prices start from £1,823 GBPSave up to £2,077 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+
1.71ct Round
£1,823 GBP