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Marquise|Lab Grown|IGI

0.71ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG803661811

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG803661811

Diamond specifications and retailer prices

From $182 CAD
$130 USD
As of October 23, 2026
Save $546 CAD (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,891 CAD at MOH London · As of October 21, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG803661811 or 803661811. Listed at 16 retailers as of October 23, 2026, with a 300% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.71
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803661811
Dimensions8.98 × 4.67 × 2.96 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
8.98 mm4.67 mm0.71 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG803661811
Side View
Table 62.0%Crown 34.4°Girdle: STK-THKPavilion 41.5°Culet: NoneDepth 63.4%

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 23
Current: $1,891 CAD|Low: $175 CAD|High: $1,920 CAD|Avg: $514 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 15$182 CAD
Retailer 5$202 CAD
Retailer 14$211 CAD
Retailer 7$225 CAD
Retailer 11$238 CAD
Retailer 16$251 CAD
Retailer 9$376 CAD
Retailer 2$392 CAD
Retailer 13$428 CAD
Retailer 6$554 CAD
Retailer 10$555 CAD
Retailer 12$557 CAD
Retailer 8$623 CAD
Retailer 3$725 CAD
Retailer 4$728 CAD
MOH London$1,891 CAD

42 data points across 16 retailers

16 retailers$182 CAD to $728 CAD

A
Cheapest Retailer
-
$182 CAD
$130 USD
A
Retailer 2
-
$202 CAD
$144 USD
View
Final sale: no returns
A
Retailer 3
-
$211 CAD
$151 USD
View
A
Retailer 4
-
$225 CAD
$161 USD
View
A
Retailer 5
-
$238 CAD
$170 USD
View
A
Retailer 6
-
$251 CAD
HK$1,400 HKD
View
A
Retailer 7
-
$376 CAD
£211 GBP
View
A
Retailer 8
-
$392 CAD
€267 EUR
View
B+
Retailer 9
-
$428 CAD
$306 USD
View
B+
Retailer 10
-
$554 CAD
$396 USD
View
B+
Retailer 11
-
$555 CAD
£312 GBP
View
B+
Retailer 12
-
$557 CAD
$398 USD
View
B
Retailer 13
-
$623 CAD
SGD 602 SGD
View
B
Retailer 14
-
$725 CAD
$518 USD
View
B
Retailer 15
-
$728 CAD
$520 USD
View
Most Expensive
B
MOH London
LG803661811 · Oct 21
$1,891 CAD
£1,064 GBP
View
Price last confirmed 8 days ago
15 more retailers have this diamond
Prices start from $182 CADSave up to $546 CAD

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
0.71ct Marquise
$182 CAD