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Round|Lab Grown|IGI

1.07ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG818687184

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818687184

Diamond specifications and retailer prices

From £105 GBP
$141 USD
As of November 1, 2026
Save £505 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £610 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.07ct lab-grown round diamond

This 1.07ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818687184 or 818687184. Listed at 15 retailers as of November 1, 2026, with prices from £105 to £610, a £505 spread on the same certified stone. MOH London lists it at £610. 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

1.07
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818687184
Dimensions6.52 × 6.56 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.52 mm6.56 mm1.07 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818687184
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.6%

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: Nov 1
Current: £610 GBP|Low: £105 GBP|High: £646 GBP|Avg: £296 GBP|-5.6%
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 12£105 GBP
Retailer 11£122 GBP
Retailer 6£131 GBP
Retailer 7£137 GBP
Retailer 9£223 GBP
Retailer 10£232 GBP
Retailer 15£243 GBP
Retailer 14£246 GBP
Retailer 8£291 GBP
Retailer 2£306 GBP
Retailer 13£315 GBP
Retailer 4£328 GBP
Retailer 5£420 GBP
Retailer 3£461 GBP
MOH London£610 GBP

29 data points across 15 retailers

15 retailers£105 GBP to £610 GBP

A
Cheapest Retailer
-
£105 GBP
$141 USD
A
Retailer 2
-
£122 GBP
$164 USD
View
A
Retailer 3
-
£131 GBP
$175 USD
View
Retailer 4
-
£137 GBP
$183 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£223 GBP
View
A
Retailer 6
-
£232 GBP
€296 EUR
View
A
Retailer 7
-
£243 GBP
$326 USD
View
A
Retailer 8
-
£246 GBP
$329 USD
View
B+
Retailer 9
-
£291 GBP
View
B+
Retailer 10
-
£306 GBP
$410 USD
View
B+
Retailer 11
-
£315 GBP
$422 USD
View
B+
Retailer 12
-
£328 GBP
$440 USD
View
B
Retailer 13
-
£420 GBP
$563 USD
View
B
Retailer 14
-
£461 GBP
$618 USD
View
Most Expensive
B
MOH London
LG818687184 · Nov 1
£610 GBP
View
14 more retailers have this diamond
Prices start from £105 GBPSave up to £505 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
1.07ct Round
£105 GBP