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Marquise|Lab Grown|IGI

0.71ct E VS1 Marquise Lab Grown Diamond

VG • E/VS1 • IGI LG821655876

Certificate IGI LG821655876

Diamond specifications and retailer prices

From £325 GBP
$436 USD
As of October 31, 2026
Save £175 GBP (35%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £500 GBP at Jared · As of October 30, 2026
View at Jared

About this 0.71ct lab-grown marquise diamond

This 0.71ct lab-grown marquise sits in the half to three-quarter carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG821655876 or 821655876. Listed at 4 retailers as of October 30, 2026, with prices from £325 to £500, a £175 spread on the same certified stone. Jared lists it at £500. 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

0.71
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG821655876
Dimensions9.94 × 4.59 × 2.74 mm
L/W Ratio2.17
Top View
9.94 mm4.59 mm0.71 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821655876
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 59.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £500 GBP|Low: £325 GBP|High: £500 GBP|Avg: £410 GBP
Jared
Retailer 2
Retailer 3
Retailer 4
September 28, 2026
Retailer 3£325 GBP
Retailer 2£425 GBP
Retailer 4£425 GBP
Jared£500 GBP

3 data points across 4 retailers

4 retailers£325 GBP to £500 GBP

B+
Cheapest Retailer
-
£325 GBP
$436 USD
B
Retailer 2
-
£425 GBP
$570 USD
View
B
Retailer 3
-
£425 GBP
$570 USD
View
Most Expensive
B
Jared
159911862 · Oct 30
£500 GBP
$670 USD
View
3 more retailers have this diamond
Prices start from £325 GBPSave up to £175 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.

B+
0.71ct Marquise
£325 GBP