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Marquise|Lab Grown|IGI

3.00ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG754508612

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754508612

Diamond specifications and retailer prices

From $4,994 AUD
As of November 3, 2026
Save $20,044 AUD (80%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $37,788 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 3ct lab-grown marquise diamond

This 3ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754508612 or 754508612. Listed at 32 retailers as of October 31, 2026, with a 401% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.00
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508612
Dimensions14.39 × 7.43 × 4.82 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
14.39 mm7.43 mm3.00 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508612
Side View
Table 58.0%Crown 37.3°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 64.9%

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: Nov 3
Current: $37,788 AUD|Low: $4,994 AUD|High: $37,788 AUD|Avg: $13,041 AUD
Do Amore Diamonds
Retailer 2
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Retailer 23
November 4, 2026
Retailer 5$4,994 AUD
Retailer 10$5,493 AUD
Retailer 12$5,758 AUD
Retailer 16$6,015 AUD
Retailer 15$6,285 AUD
Retailer 8$6,458 AUD
Retailer 18$7,572 AUD
Retailer 6$8,155 AUD
Retailer 17$8,269 AUD
Retailer 7$8,451 AUD
Retailer 4$10,754 AUD
Retailer 11$10,811 AUD
Retailer 3$11,528 AUD
Retailer 21$14,564 AUD
Retailer 20$14,843 AUD
Retailer 14$15,906 AUD
Retailer 9$16,146 AUD
Retailer 22$16,169 AUD
Retailer 2$16,672 AUD
Retailer 19$17,011 AUD
Retailer 13$23,227 AUD
Retailer 23$23,270 AUD
Do Amore Diamonds$37,788 AUD

42 data points across 23 retailers

32 retailers$4,994 AUD to $25,038 AUD

A
Cheapest Retailer
-
$4,994 AUD
A
Retailer 2
-
$5,493 AUD
View
Retailer 3
-
$5,493 AUD
View
Price last confirmed 27 days ago
Retailer 4
-
$5,493 AUD
View
Price last confirmed 35 days ago
Retailer 5
-
$5,758 AUD
View
Price last confirmed 36 days ago
A
Retailer 6
-
$6,015 AUD
View
Retailer 7
-
$6,285 AUD
View
Price last confirmed 36 days ago
Retailer 8
-
$6,372 AUD
View
Price last confirmed 25 days ago
Retailer 9
-
$6,372 AUD
View
Price last confirmed 32 days ago
A
Retailer 10
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$6,458 AUD
View
A
Retailer 11
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$7,303 AUD
View
Final sale: no returns
A
Retailer 12
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$7,572 AUD
View
B+
Retailer 13
-
$8,155 AUD
View
A
Retailer 14
-
$8,269 AUD
View
B+
Retailer 15
-
$8,451 AUD
View
Retailer 16
-
$8,789 AUD
View
Price last confirmed 25 days ago
B+
Retailer 17
-
$8,789 AUD
View
Retailer 18
-
$8,789 AUD
View
Price last confirmed 35 days ago
B+
Retailer 19
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$9,884 AUD
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B+
Retailer 20
-
$10,754 AUD
View
B+
Retailer 21
-
$10,811 AUD
View
B+
Retailer 22
-
$11,528 AUD
View
B+
Retailer 23
-
$14,564 AUD
View
B+
Retailer 24
-
$14,843 AUD
View
B
Retailer 25
-
$16,146 AUD
View
B
Retailer 26
-
$16,169 AUD
View
B
Retailer 27
-
$16,672 AUD
View
B
Retailer 28
-
$17,011 AUD
View
B
Retailer 29
-
$23,227 AUD
View
B
Retailer 30
-
$23,270 AUD
View
B
Retailer 31
-
$25,038 AUD
View
Most Expensive
Do Amore Diamonds
27-CD9BDF00E · Nov 2
$37,788 AUD
$26,390 USD
View
Price under review
31 more retailers have this diamond
Prices start from $4,994 AUDSave up to $20,044 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
3.00ct Marquise
$4,994 AUD