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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 $12,454 AUD
$8,748 USD
As of October 30, 2026
Save $33,278 AUD (73%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $45,731 AUD 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 $12,454 to $45,731, a $33,278 spread on the same certified stone. Taylor and Hart lists it at $45,731. 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
Colour
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

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: $26,301 AUD|Low: $10,973 AUD|High: $72,774 AUD|Avg: $24,853 AUD
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Taylor and Hart
November 1, 2026
Retailer 20$12,454 AUD
Retailer 18$12,986 AUD
Retailer 14$13,219 AUD
Retailer 8$13,326 AUD
Retailer 11$14,307 AUD
Retailer 5$14,329 AUD
Retailer 4$14,445 AUD
Retailer 22$14,445 AUD
Retailer 2$16,246 AUD
Retailer 21$16,504 AUD
Retailer 6$16,761 AUD
Retailer 16$17,389 AUD
Retailer 7$20,698 AUD
Retailer 3$22,733 AUD
Retailer 17$22,915 AUD
Retailer 1$26,301 AUD
Retailer 12$30,748 AUD
Retailer 19$32,697 AUD
Retailer 15$32,832 AUD
Retailer 9$37,713 AUD
Retailer 13$40,234 AUD
Taylor and Hart$45,731 AUD
Retailer 10$72,774 AUD

36 data points across 23 retailers

24 retailers$12,454 AUD to $45,731 AUD

A
Cheapest Retailer
-
$12,454 AUD
$8,748 USD
A
Retailer 2
-
$12,952 AUD
$9,098 USD
View
A
Retailer 3
-
$12,986 AUD
$9,122 USD
View
A
Retailer 4
-
$13,219 AUD
CA$12,897 CAD
View
A
Retailer 5
-
$13,326 AUD
$9,361 USD
View
A
Retailer 6
-
$14,307 AUD
$10,050 USD
View
A
Retailer 7
-
$14,329 AUD
$10,065 USD
View
A
Retailer 8
-
$14,445 AUD
$10,147 USD
View
Retailer 9
-
$14,445 AUD
$10,147 USD
View
Price last confirmed 16 days ago
A
Retailer 10
-
$16,246 AUD
$11,412 USD
View
A
Retailer 11
-
$16,504 AUD
$11,593 USD
View
A
Retailer 12
-
$16,761 AUD
$11,774 USD
View
Final sale: no returns
A
Retailer 13
-
$17,389 AUD
£9,618 GBP
View
B+
Retailer 14
-
$20,698 AUD
£11,448 GBP
View
B+
Retailer 15
-
$22,733 AUD
$15,969 USD
View
B+
Retailer 16
-
$22,915 AUD
€15,330 EUR
View
B+
Retailer 17
-
$26,301 AUD
£14,547 GBP
View
B+
Retailer 18
-
$30,748 AUD
ZAR 348,926 ZAR
View
B
Retailer 19
-
$32,697 AUD
$22,968 USD
View
B
Retailer 20
-
$32,832 AUD
$23,063 USD
View
Retailer 21
-
$37,713 AUD
$26,491 USD
View
Price last confirmed 8 days ago
B
Retailer 22
-
$40,234 AUD
$28,262 USD
View
Most Expensive
B
Taylor and Hart
NC40QQR · Oct 31
$45,731 AUD
$32,124 USD
View
22 more retailers have this diamond
Prices start from $12,454 AUDSave up to $33,278 AUD

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
$12,454 AUD