Round|Lab Grown|IGI

1.71ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG811630422

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811630422

Diamond specifications and retailer prices

From £223 GBP
$299 USD
As of October 29, 2026
Save £841 GBP (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,115 GBP at MOH London · As of October 21, 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 G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG811630422 or 811630422. Listed at 18 retailers as of October 29, 2026, with a 377% 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
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811630422
Dimensions7.71 × 7.68 × 4.69 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.71 mm7.68 mm1.71 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811630422
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.9%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: £1,115 GBP|Low: £214 GBP|High: £1,122 GBP|Avg: £555 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 13£223 GBP
Retailer 15£259 GBP
Retailer 5£277 GBP
Retailer 14£277 GBP
Retailer 8£406 GBP
Retailer 4£452 GBP
Retailer 10£455 GBP
Retailer 9£476 GBP
Retailer 2£490 GBP
Retailer 7£532 GBP
Retailer 11£650 GBP
Retailer 12£850 GBP
Retailer 6£890 GBP
Retailer 3£1,064 GBP
MOH London£1,115 GBP

40 data points across 15 retailers

18 retailers£223 GBP to £1,064 GBP

A
Cheapest Retailer
-
£223 GBP
$299 USD
A
Retailer 2
-
£250 GBP
$335 USD
View
Final sale: no returns
A
Retailer 3
-
£259 GBP
$347 USD
View
A
Retailer 4
-
£277 GBP
$371 USD
View
A
Retailer 5
-
£277 GBP
$371 USD
View
A
Retailer 6
-
£406 GBP
View
B+
Retailer 7
-
£452 GBP
$606 USD
View
B+
Retailer 8
-
£455 GBP
$610 USD
View
B+
Retailer 9
-
£476 GBP
ZAR 10,294 ZAR
View
B+
Retailer 10
-
£490 GBP
View
B+
Retailer 11
-
£508 GBP
$681 USD
View
B+
Retailer 12
-
£532 GBP
$713 USD
View
B+
Retailer 13
-
£650 GBP
A$1,339 AUD
View
B
Retailer 14
-
£850 GBP
$1,139 USD
View
B
Retailer 15
-
£890 GBP
$1,192 USD
View
B
Retailer 16
-
£925 GBP
$1,240 USD
View
B
Retailer 17
-
£1,064 GBP
$1,426 USD
View
Most Expensive
MOH London
LG811630422 · Oct 21
£1,115 GBP
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from £223 GBPSave up to £841 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
£223 GBP