Marquise|Lab Grown|IGI

4.31ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG793603302

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG793603302

Diamond specifications and retailer prices

From $12,332 CAD
$8,828 USD
As of October 27, 2026
Save $32,887 CAD (73%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $45,219 CAD at Taylor and Hart · As of October 26, 2026
View at Taylor and Hart

About this 4.31ct lab-grown marquise diamond

This 4.31ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG793603302 or 793603302. Listed at 24 retailers as of October 26, 2026, with prices from $12,332 to $45,219, a $32,887 spread on the same certified stone. Taylor and Hart lists it at $45,219. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.31
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG793603302
Dimensions16.79 × 8.65 × 5.23 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
16.79 mm8.65 mm4.31 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG793603302
Side View
Table 61.0%Crown 34.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.5%

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 27
Current: $22,693 CAD|Low: $10,868 CAD|High: $72,079 CAD|Avg: $24,556 CAD|-3.5%
Retailer 1
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Retailer 7
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Retailer 12
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Retailer 19
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Retailer 23
Taylor and Hart
October 27, 2026
Retailer 22$12,332 CAD
Retailer 4$12,825 CAD
Retailer 20$12,863 CAD
Retailer 14$13,092 CAD
Retailer 9$13,199 CAD
Retailer 11$14,165 CAD
Retailer 6$14,190 CAD
Retailer 2$14,304 CAD
Retailer 3$16,087 CAD
Retailer 23$16,347 CAD
Retailer 5$16,601 CAD
Retailer 12$17,171 CAD
Retailer 7$20,501 CAD
Retailer 10$22,661 CAD
Retailer 1$22,693 CAD
Retailer 19$23,035 CAD
Retailer 17$26,079 CAD
Retailer 18$30,327 CAD
Retailer 21$32,386 CAD
Retailer 15$32,518 CAD
Retailer 8$37,352 CAD
Retailer 16$39,841 CAD
Taylor and Hart$45,219 CAD
Retailer 13$72,079 CAD

34 data points across 24 retailers

24 retailers$12,332 CAD to $45,219 CAD

A
Cheapest Retailer
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$12,332 CAD
$8,828 USD
A
Retailer 2
-
$12,825 CAD
$9,181 USD
View
A
Retailer 3
-
$12,863 CAD
$9,208 USD
View
A
Retailer 4
-
$13,092 CAD
View
A
Retailer 5
-
$13,199 CAD
$9,449 USD
View
A
Retailer 6
-
$14,165 CAD
$10,140 USD
View
A
Retailer 7
-
$14,190 CAD
$10,158 USD
View
A
Retailer 8
-
$14,304 CAD
$10,240 USD
View
Retailer 9
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$14,304 CAD
$10,240 USD
View
Price last confirmed 16 days ago
A
Retailer 10
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$16,087 CAD
$11,516 USD
View
A
Retailer 11
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$16,347 CAD
$11,702 USD
View
A
Retailer 12
-
$17,171 CAD
£9,679 GBP
View
B+
Retailer 13
-
$20,501 CAD
£11,556 GBP
View
Retailer 14
-
$22,517 CAD
$16,119 USD
View
Price last confirmed 11 days ago
B+
Retailer 15
-
$22,693 CAD
€15,472 EUR
View
B+
Retailer 16
-
$23,035 CAD
$16,490 USD
View
B+
Retailer 17
-
$26,079 CAD
£14,700 GBP
View
B+
Retailer 18
-
$30,327 CAD
ZAR 350,735 ZAR
View
B
Retailer 19
-
$32,386 CAD
$23,184 USD
View
B
Retailer 20
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$32,518 CAD
$23,279 USD
View
Retailer 21
-
$37,352 CAD
$26,739 USD
View
Price last confirmed 8 days ago
B
Retailer 22
-
$39,841 CAD
$28,521 USD
View
Most Expensive
B
Taylor and Hart
8PB1PC0 · Oct 26
$45,219 CAD
$32,371 USD
View
22 more retailers have this diamond
Prices start from $12,332 CADSave up to $32,887 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
4.31ct Marquise
$12,332 CAD