Marquise|Lab Grown|IGI

3.45ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG799696875

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799696875

Diamond specifications and retailer prices

From $7,276 AUD
$5,111 USD
As of October 31, 2026
Save $28,407 AUD (80%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $35,683 AUD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.45ct lab-grown marquise diamond

This 3.45ct 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 LG799696875 or 799696875. Listed at 28 retailers as of October 30, 2026, with prices from $7,276 to $35,683, a $28,407 spread on the same certified stone. Taylor and Hart lists it at $35,683. 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

3.45
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799696875
Dimensions15.24 × 7.93 × 5.02 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
15.24 mm7.93 mm3.45 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799696875
Side View
Table 59.0%Crown 36.7°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.3%

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 31
Current: $23,880 AUD|Low: $7,276 AUD|High: $55,264 AUD|Avg: $17,813 AUD|+1.9%
Retailer 1
Retailer 2
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Retailer 5
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Retailer 7
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Retailer 23
Taylor and Hart
October 29, 2026
Retailer 7$7,276 AUD
Retailer 11$7,865 AUD
Retailer 2$8,032 AUD
Retailer 9$8,403 AUD
Retailer 10$8,418 AUD
Retailer 4$9,317 AUD
Retailer 22$9,317 AUD
Retailer 19$9,756 AUD
Retailer 21$10,069 AUD
Retailer 5$12,209 AUD
Retailer 12$12,860 AUD
Retailer 6$14,666 AUD
Retailer 3$15,176 AUD
Retailer 18$16,150 AUD
Retailer 20$17,752 AUD
Retailer 17$20,671 AUD
Retailer 23$23,047 AUD
Retailer 1$23,880 AUD
Retailer 14$24,164 AUD
Retailer 16$25,821 AUD
Retailer 13$26,581 AUD
Retailer 15$26,896 AUD
Taylor and Hart$35,683 AUD
Retailer 8$55,264 AUD

35 data points across 24 retailers

28 retailers$7,276 AUD to $35,683 AUD

A
Cheapest Retailer
-
$7,276 AUD
$5,111 USD
A
Retailer 2
-
$7,865 AUD
$5,525 USD
View
A
Retailer 3
-
$8,032 AUD
$5,642 USD
View
A
Retailer 4
-
$8,403 AUD
CA$8,198 CAD
View
A
Retailer 5
-
$8,418 AUD
$5,913 USD
View
A
Retailer 6
-
$9,317 AUD
$6,545 USD
View
Retailer 7
-
$9,317 AUD
$6,545 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$9,317 AUD
$6,545 USD
View
B+
Retailer 9
-
$9,756 AUD
$6,853 USD
View
Final sale: no returns
B+
Retailer 10
-
$10,069 AUD
$7,073 USD
View
B+
Retailer 11
-
$12,209 AUD
$8,576 USD
View
B+
Retailer 12
-
$12,860 AUD
£7,113 GBP
View
B+
Retailer 13
-
$14,666 AUD
£8,112 GBP
View
B
Retailer 14
-
$15,176 AUD
$10,660 USD
View
B+
Retailer 15
-
$16,150 AUD
€10,804 EUR
View
B+
Retailer 16
-
$17,752 AUD
$12,470 USD
View
B
Retailer 17
-
$19,182 AUD
$13,474 USD
View
B
Retailer 18
-
$20,671 AUD
£11,433 GBP
View
B
Retailer 19
-
$23,047 AUD
$16,189 USD
View
B
Retailer 20
-
$23,880 AUD
ZAR 270,989 ZAR
View
B
Retailer 21
-
$24,164 AUD
$16,974 USD
View
B
Retailer 22
-
$25,821 AUD
$18,138 USD
View
Retailer 23
-
$26,581 AUD
$18,671 USD
View
Price last confirmed 7 days ago
B
Retailer 24
-
$26,896 AUD
$18,893 USD
View
B
Retailer 25
-
$35,682 AUD
$25,064 USD
View
Most Expensive
B
Taylor and Hart
J9B9Q7H · Oct 30
$35,683 AUD
$25,065 USD
View
25 more retailers have this diamond
Prices start from $7,276 AUDSave up to $28,407 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
3.45ct Marquise
$7,276 AUD