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Round|Lab Grown|IGI

1.76ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG596315204

Shape and cutting style on the report: Round brilliant

Certificate IGI LG596315204

Diamond specifications and retailer prices

From £155 GBP
$208 USD
As of November 1, 2026
Save £1,514 GBP (91%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,669 GBP at Jared · As of November 2, 2026
View at Jared

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG596315204 or 596315204. Listed at 11 retailers as of November 1, 2026, with prices from £155 to £1,669, a £1,514 spread on the same certified stone. Jared lists it at £1,669. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG596315204
Dimensions7.79 × 7.82 × 4.75 mm
L/W Ratio1.00
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
7.79 mm7.82 mm1.76 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG596315204
Side View
Table 59.0%Crown 33.4°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 60.9%

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: £390 GBP|Low: £128 GBP|High: £1,528 GBP|Avg: £589 GBP|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 12£155 GBP
Retailer 13£176 GBP
Retailer 11£180 GBP
Retailer 10£332 GBP
Retailer 1£390 GBP
Retailer 3£414 GBP
Retailer 5£456 GBP
Retailer 2£504 GBP
Retailer 7£621 GBP
Retailer 8£683 GBP
Retailer 6£856 GBP
Retailer 4£1,066 GBP
Retailer 9£1,490 GBP

40 data points across 13 retailers

11 retailers£155 GBP to £1,669 GBP

A
Cheapest Retailer
-
£155 GBP
$208 USD
A
Retailer 2
-
£176 GBP
$236 USD
View
Final sale: no returns
A
Retailer 3
-
£180 GBP
$242 USD
View
B+
Retailer 4
-
£332 GBP
$446 USD
View
A
Retailer 5
-
£390 GBP
View
B+
Retailer 6
-
£621 GBP
$833 USD
View
B+
Retailer 7
-
£683 GBP
$917 USD
View
B
Retailer 8
-
£856 GBP
View
B
Retailer 9
-
£1,066 GBP
$1,430 USD
View
B
Retailer 10
-
£1,490 GBP
$2,000 USD
View
Most Expensive
B
Jared
150062119 · Nov 2
£1,669 GBP
$2,240 USD
View
10 more retailers have this diamond
Prices start from £155 GBPSave up to £1,514 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
£155 GBP