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Marquise|Lab Grown|IGI

1.73ct E VVS1 Marquise Lab Grown Diamond

VG • E/VVS1 • IGI LG838605703

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838605703

Diamond specifications and retailer prices

From £222 GBP
$298 USD
As of October 30, 2026
Save £1,087 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,310 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 LG838605703 or 838605703. Listed at 10 retailers as of October 28, 2026, with prices from £222 to £1,310, a £1,087 spread on the same certified stone. Rare Carat lists it at £1,310. 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
SymmetryVery Good
FluorescenceNone
Crown angle37.1°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838605703
Dimensions12.30 × 6.33 × 3.81 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.30 mm6.33 mm1.73 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG838605703
Side View
Table 62.0%Crown 37.1°Girdle: MED-STKPavilion 39°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,310 GBP|Low: £222 GBP|High: £1,310 GBP|Avg: £565 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 6£222 GBP
Retailer 5£257 GBP
Retailer 3£292 GBP
Retailer 9£392 GBP
Retailer 8£451 GBP
Retailer 2£475 GBP
Retailer 7£847 GBP
Retailer 10£886 GBP
Retailer 4£1,111 GBP
Rare Carat£1,310 GBP

8 data points across 10 retailers

10 retailers£222 GBP to £1,310 GBP

A
Cheapest Retailer
-
£222 GBP
$298 USD
A
Retailer 2
-
£257 GBP
$345 USD
View
A
Retailer 3
-
£292 GBP
View
A
Retailer 4
-
£392 GBP
$525 USD
View
A
Retailer 5
-
£451 GBP
$604 USD
View
A
Retailer 6
-
£475 GBP
$637 USD
View
B+
Retailer 7
-
£847 GBP
$1,135 USD
View
B+
Retailer 8
-
£886 GBP
$1,187 USD
View
B
Retailer 9
-
£1,111 GBP
View
Most Expensive
B
Rare Carat
ME-833-77 · Oct 28
£1,310 GBP
$1,755 USD
View
9 more retailers have this diamond
Prices start from £222 GBPSave up to £1,087 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
£222 GBP