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Round|Lab Grown|IGI

1.71ct G VVS1 Round Lab Grown Diamond

EX • G/VVS1 • IGI LG780612257

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780612257

Diamond specifications and retailer prices

From £237 GBP
$318 USD
As of October 29, 2026
Save £948 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,186 GBP at MOH London · As of October 29, 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 LG780612257 or 780612257. Listed at 13 retailers as of October 29, 2026, with prices from £237 to £1,186, a £948 spread on the same certified stone. MOH London lists it at £1,186. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780612257
Dimensions7.79 × 7.76 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.79 mm7.76 mm1.71 ctG / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780612257
Side View
Table 61.0%Crown 32.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.0%

Caratlytics Score

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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: £1,186 GBP|Low: £228 GBP|High: £1,193 GBP|Avg: £553 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
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 15£237 GBP
Retailer 3£266 GBP
Retailer 14£275 GBP
Retailer 13£294 GBP
Retailer 7£297 GBP
Retailer 9£396 GBP
Retailer 10£432 GBP
Retailer 8£501 GBP
Retailer 5£513 GBP
Retailer 2£529 GBP
Retailer 4£532 GBP
Retailer 11£686 GBP
Retailer 12£946 GBP
Retailer 6£988 GBP
Retailer 16£1,141 GBP
MOH London£1,186 GBP

30 data points across 16 retailers

13 retailers£237 GBP to £1,186 GBP

A
Cheapest Retailer
-
£237 GBP
$318 USD
A
Retailer 2
-
£266 GBP
$356 USD
View
Final sale: no returns
A
Retailer 3
-
£275 GBP
$369 USD
View
A
Retailer 4
-
£294 GBP
$394 USD
View
A
Retailer 5
-
£396 GBP
$530 USD
View
A
Retailer 6
-
£432 GBP
View
B+
Retailer 7
-
£513 GBP
$688 USD
View
B+
Retailer 8
-
£529 GBP
View
B+
Retailer 9
-
£686 GBP
A$1,414 AUD
View
B
Retailer 10
-
£946 GBP
$1,268 USD
View
B
Retailer 11
-
£988 GBP
$1,324 USD
View
B
Retailer 12
-
£1,141 GBP
$1,529 USD
View
Most Expensive
B
MOH London
LG780612257 · Oct 29
£1,186 GBP
View
12 more retailers have this diamond
Prices start from £237 GBPSave up to £948 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
£237 GBP