Marquise|Lab Grown|IGI

4.27ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG826611285

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826611285

Diamond specifications and retailer prices

From $8,748 USD
As of October 30, 2026
Save $23,376 USD (73%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $32,124 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.27ct lab-grown marquise diamond

This 4.27ct 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 LG826611285 or 826611285. Listed at 24 retailers as of October 30, 2026, with prices from $8,748 to $32,124, a $23,376 spread on the same certified stone. Taylor and Hart lists it at $32,124. 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

4.27
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826611285
Dimensions16.17 × 8.59 × 5.26 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.17 mm8.59 mm4.27 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826611285
Side View
Table 60.0%Crown 34.8°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.2%

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: $18,475 USD|Low: $7,708 USD|High: $51,120 USD|Avg: $17,458 USD
Retailer 1
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Retailer 22
Taylor and Hart
November 1, 2026
Retailer 20$8,748 USD
Retailer 18$9,122 USD
Retailer 14$9,286 USD
Retailer 8$9,361 USD
Retailer 11$10,050 USD
Retailer 5$10,065 USD
Retailer 4$10,147 USD
Retailer 22$10,147 USD
Retailer 2$11,412 USD
Retailer 21$11,593 USD
Retailer 6$11,774 USD
Retailer 16$12,215 USD
Retailer 7$14,539 USD
Retailer 3$15,969 USD
Retailer 17$16,097 USD
Retailer 1$18,475 USD
Retailer 12$21,599 USD
Retailer 19$22,968 USD
Retailer 15$23,063 USD
Retailer 9$26,491 USD
Retailer 13$28,262 USD
Taylor and Hart$32,124 USD
Retailer 10$51,120 USD

36 data points across 23 retailers

24 retailers$8,748 USD to $32,124 USD

A
Cheapest Retailer
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$8,748 USD
A
Retailer 2
-
$9,098 USD
View
A
Retailer 3
-
$9,122 USD
View
A
Retailer 4
-
$9,286 USD
CA$12,897 CAD
View
A
Retailer 5
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$9,361 USD
View
A
Retailer 6
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$10,050 USD
View
A
Retailer 7
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$10,065 USD
View
A
Retailer 8
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$10,147 USD
View
Retailer 9
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$10,147 USD
View
Price last confirmed 16 days ago
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Retailer 10
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$11,412 USD
View
A
Retailer 11
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$11,593 USD
View
A
Retailer 12
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$11,774 USD
View
Final sale: no returns
A
Retailer 13
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$12,215 USD
£9,618 GBP
View
B+
Retailer 14
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$14,539 USD
£11,448 GBP
View
B+
Retailer 15
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$15,969 USD
View
B+
Retailer 16
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$16,097 USD
€15,330 EUR
View
B+
Retailer 17
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$18,475 USD
£14,547 GBP
View
B+
Retailer 18
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$21,599 USD
ZAR 348,926 ZAR
View
B
Retailer 19
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$22,968 USD
View
B
Retailer 20
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$23,063 USD
View
Retailer 21
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$26,491 USD
View
Price last confirmed 8 days ago
B
Retailer 22
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$28,262 USD
View
Most Expensive
B
Taylor and Hart
NC40QQR · Oct 31
$32,124 USD
View
22 more retailers have this diamond
Prices start from $8,748 USDSave up to $23,376 USD

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
4.27ct Marquise
$8,748 USD