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Radiant|Lab Grown|IGI

1.77ct H VS2 Radiant Lab Grown Diamond

ID • H/VS2 • IGI LG778659561

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG778659561

Diamond specifications and retailer prices

From £166 GBP
$222 USD
As of October 30, 2026
Save £767 GBP (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £933 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.77ct lab-grown radiant diamond

This 1.77ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778659561 or 778659561. Listed at 15 retailers as of October 29, 2026, with prices from £166 to £933, a £767 spread on the same certified stone. Brilliant Earth lists it at £933. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778659561
Dimensions8.87 × 5.92 × 4.03 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.87 mm5.92 mm1.77 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778659561
Side View
Table 62.0%Crown 37.5°Girdle: Slightly ThickPavilion 34.3°Culet: NoneDepth 68.1%

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 30
Current: £933 GBP|Low: £160 GBP|High: £963 GBP|Avg: £494 GBP|-3.1%
Brilliant Earth
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
October 31, 2026
Retailer 11£166 GBP
Retailer 9£185 GBP
Retailer 5£193 GBP
Retailer 14£205 GBP
Retailer 3£207 GBP
Retailer 10£349 GBP
Retailer 4£432 GBP
Retailer 8£458 GBP
Retailer 2£543 GBP
Retailer 6£663 GBP
Retailer 12£664 GBP
Retailer 13£699 GBP
Retailer 7£739 GBP
Retailer 15£832 GBP
Brilliant Earth£933 GBP

36 data points across 15 retailers

15 retailers£166 GBP to £933 GBP

A
Cheapest Retailer
-
£166 GBP
$222 USD
A
Retailer 2
-
£185 GBP
$248 USD
View
Final sale: no returns
A
Retailer 3
-
£193 GBP
$259 USD
View
A
Retailer 4
-
£205 GBP
$275 USD
View
A
Retailer 5
-
£207 GBP
$277 USD
View
B+
Retailer 6
-
£349 GBP
$468 USD
View
A
Retailer 7
-
£432 GBP
$579 USD
View
A
Retailer 8
-
£458 GBP
$614 USD
View
B+
Retailer 9
-
£543 GBP
$727 USD
View
B+
Retailer 10
-
£663 GBP
$889 USD
View
B+
Retailer 11
-
£664 GBP
SGD 1,202 SGD
View
B+
Retailer 12
-
£699 GBP
$937 USD
View
Retailer 13
-
£739 GBP
$990 USD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
£832 GBP
View
Most Expensive
B
Brilliant Earth
21501255A · Oct 29
£933 GBP
$1,250 USD
View
14 more retailers have this diamond
Prices start from £166 GBPSave up to £767 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
1.77ct Radiant
£166 GBP