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Marquise|Lab Grown|IGI

1.73ct E VVS1 Marquise Lab Grown Diamond

VG • E/VVS1 • IGI LG844607297

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844607297

Diamond specifications and retailer prices

From £390 GBP
$522 USD
As of October 30, 2026
Save £905 GBP (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,295 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.73ct lab-grown marquise diamond

This 1.73ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG844607297 or 844607297. Listed at 8 retailers as of October 28, 2026, with prices from £390 to £1,295, a £905 spread on the same certified stone. Rare Carat lists it at £1,295. 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

1.73
Carat
E
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844607297
Dimensions13.09 × 6.16 × 3.54 mm
L/W Ratio2.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.09 mm6.16 mm1.73 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844607297
Side View
Table 60.0%Crown 35.7°Girdle: STK-THKPavilion 35.4°Culet: NoneDepth 57.5%

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: £1,295 GBP|Low: £390 GBP|High: £1,295 GBP|Avg: £706 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5£390 GBP
Retailer 6£489 GBP
Retailer 3£489 GBP
Retailer 2£516 GBP
Retailer 7£602 GBP
Retailer 8£966 GBP
Retailer 4£1,162 GBP
Rare Carat£1,295 GBP

23 data points across 8 retailers

8 retailers£390 GBP to £1,295 GBP

A
Cheapest Retailer
-
£390 GBP
$522 USD
A
Retailer 2
-
£489 GBP
$655 USD
View
A
Retailer 3
-
£489 GBP
€624 EUR
View
A
Retailer 4
-
£516 GBP
View
B+
Retailer 5
-
£602 GBP
$807 USD
View
B
Retailer 6
-
£966 GBP
$1,294 USD
View
B
Retailer 7
-
£1,162 GBP
View
Most Expensive
B
Rare Carat
DP-08-18_l_844607297 · Oct 28
£1,295 GBP
$1,735 USD
View
7 more retailers have this diamond
Prices start from £390 GBPSave up to £905 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
1.73ct Marquise
£390 GBP