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Marquise|Lab Grown|IGI

1.77ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG846632152

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846632152

Diamond specifications and retailer prices

From £332 GBP
$445 USD
As of October 30, 2026
Save £743 GBP (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,075 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.77ct lab-grown marquise diamond

This 1.77ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846632152 or 846632152. Listed at 10 retailers as of October 30, 2026, with prices from £332 to £1,075, a £743 spread on the same certified stone. Brilliant Earth lists it at £1,075. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846632152
Dimensions12.88 × 6.13 × 3.90 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.88 mm6.13 mm1.77 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846632152
Side View
Table 62.0%Crown 31.8°Girdle: STK-THKPavilion 41.2°Culet: NoneDepth 63.6%

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: Oct 30
Current: £1,075 GBP|Low: £332 GBP|High: £1,075 GBP|Avg: £637 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3£332 GBP
Retailer 6£344 GBP
Retailer 4£440 GBP
Retailer 2£471 GBP
Retailer 7£480 GBP
Retailer 8£588 GBP
Retailer 9£829 GBP
Retailer 5£988 GBP
Retailer 10£1,040 GBP
Brilliant Earth£1,075 GBP

19 data points across 10 retailers

10 retailers£332 GBP to £1,075 GBP

B+
Cheapest Retailer
-
£332 GBP
$445 USD
A
Retailer 2
-
£344 GBP
HK$3,600 HKD
View
A
Retailer 3
-
£440 GBP
€562 EUR
View
A
Retailer 4
-
£471 GBP
View
A
Retailer 5
-
£480 GBP
$643 USD
View
A
Retailer 6
-
£588 GBP
$788 USD
View
B+
Retailer 7
-
£829 GBP
$1,111 USD
View
B
Retailer 8
-
£988 GBP
View
B
Retailer 9
-
£1,040 GBP
CA$1,936 CAD
View
Most Expensive
B
Brilliant Earth
22176726A · Oct 30
£1,075 GBP
$1,440 USD
View
9 more retailers have this diamond
Prices start from £332 GBPSave up to £743 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 Marquise
£332 GBP