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Round|Lab Grown|IGI

1.76ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG617445909

Shape and cutting style on the report: Round brilliant

Certificate IGI LG617445909

Diamond specifications and retailer prices

From £182 GBP
$242 USD
As of October 29, 2026
Save £726 GBP (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £908 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.76ct lab-grown round diamond

This 1.76ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG617445909 or 617445909. Listed at 16 retailers as of October 29, 2026, with prices from £182 to £908, a £726 spread on the same certified stone. MOH London lists it at £908. 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

1.76
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617445909
Dimensions7.84 × 7.81 × 4.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.84 mm7.81 mm1.76 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617445909
Side View
Table 58.0%Crown 34.1°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 60.2%

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: £908 GBP|Low: £156 GBP|High: £914 GBP|Avg: £466 GBP|+16.7%
MOH London
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
October 29, 2026
Retailer 13£182 GBP
Retailer 11£211 GBP
Retailer 3£225 GBP
Retailer 10£225 GBP
Retailer 9£345 GBP
Retailer 6£380 GBP
Retailer 16£391 GBP
Retailer 5£420 GBP
Retailer 2£425 GBP
Retailer 4£478 GBP
Retailer 14£627 GBP
Retailer 15£724 GBP
Retailer 12£727 GBP
Retailer 8£849 GBP
Retailer 7£855 GBP
MOH London£908 GBP

39 data points across 16 retailers

16 retailers£182 GBP to £908 GBP

A
Cheapest Retailer
-
£182 GBP
$242 USD
A
Retailer 2
-
£211 GBP
$281 USD
View
A
Retailer 3
-
£225 GBP
$300 USD
View
A
Retailer 4
-
£225 GBP
$300 USD
View
A
Retailer 5
-
£345 GBP
€438 EUR
View
B+
Retailer 6
-
£380 GBP
$506 USD
View
Retailer 7
-
£391 GBP
View
Price last confirmed 12 days ago
A
Retailer 8
-
£420 GBP
$559 USD
View
B+
Retailer 9
-
£425 GBP
View
B+
Retailer 10
-
£478 GBP
$636 USD
View
B+
Retailer 11
-
£627 GBP
$835 USD
View
B
Retailer 12
-
£724 GBP
$964 USD
View
B
Retailer 13
-
£727 GBP
$968 USD
View
B
Retailer 14
-
£849 GBP
$1,130 USD
View
B
Retailer 15
-
£855 GBP
$1,138 USD
View
Most Expensive
B
MOH London
LG617445909 · Oct 29
£908 GBP
View
15 more retailers have this diamond
Prices start from £182 GBPSave up to £726 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
1.76ct Round
£182 GBP