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Marquise|Lab Grown|IGI

1.74ct G VS1 Marquise Lab Grown Diamond

GD • G/VS1 • IGI LG805669696

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG805669696

Diamond specifications and retailer prices

From £1,142 GBP
$1,530 USD
As of October 31, 2026
2 retailers carry this diamond
Most expensive: £1,142 GBP at Brilliant Earth
View at Brilliant Earth

About this 1.74ct lab-grown marquise diamond

This 1.74ct 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 standard cut grade and certified by IGI LG805669696 or 805669696. Listed at 2 retailers as of October 31, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.74
Carat
G
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805669696
Dimensions11.98 × 6.25 × 4.02 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.98 mm6.25 mm1.74 ctG / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805669696
Side View
Table 61.0%Crown 34.2°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 64.3%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 31
Current: £1,142 GBP|Low: £258 GBP|High: £1,194 GBP|Avg: £638 GBP|-4.4%
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
August 26, 2026
Retailer 5£258 GBP
Retailer 3£286 GBP
Retailer 9£363 GBP
Retailer 4£402 GBP
Retailer 6£428 GBP
Retailer 2£474 GBP
Retailer 12£529 GBP
Retailer 13£602 GBP
Retailer 8£759 GBP
Retailer 10£794 GBP
Retailer 7£876 GBP
Retailer 11£948 GBP
Brilliant Earth£1,142 GBP

41 data points across 13 retailers

2 retailers

Retailer 1
-
£876 GBP
$1,174 USD
Price last confirmed 77 days ago
Most Expensive
C
Brilliant Earth
20041722A · Oct 31
£1,142 GBP
$1,530 USD
View
1 more retailer has this diamond

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.

C
1.74ct Marquise
£1,142 GBP