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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 $3,488 USD
As of November 2, 2026
Save $14,513 USD (81%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $26,390 USD 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 31 retailers as of November 2, 2026, with a 416% 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
Color
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 2
Current: $26,390 USD|Low: $3,488 USD|High: $26,390 USD|Avg: $8,769 USD
Do Amore Diamonds
Retailer 2
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Retailer 24
November 2, 2026
Retailer 23$3,488 USD
Retailer 8$3,836 USD
Retailer 10$4,021 USD
Retailer 15$4,201 USD
Retailer 12$4,389 USD
Retailer 5$4,510 USD
Retailer 16$5,100 USD
Retailer 24$5,695 USD
Retailer 3$5,875 USD
Retailer 4$5,902 USD
Retailer 2$6,358 USD
Retailer 17$6,904 USD
Retailer 22$7,510 USD
Retailer 9$7,550 USD
Retailer 21$8,051 USD
Retailer 13$10,171 USD
Retailer 11$11,108 USD
Retailer 7$11,276 USD
Retailer 18$11,292 USD
Retailer 20$11,405 USD
Retailer 6$12,848 USD
Retailer 19$16,252 USD
Retailer 14$18,001 USD
Do Amore Diamonds$26,390 USD

42 data points across 24 retailers

31 retailers$3,488 USD to $18,001 USD

A
Cheapest Retailer
-
$3,488 USD
A
Retailer 2
-
$3,836 USD
View
Retailer 3
-
$3,836 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$3,836 USD
View
Price last confirmed 33 days ago
Retailer 5
-
$4,021 USD
View
Price last confirmed 34 days ago
A
Retailer 6
-
$4,201 USD
View
Retailer 7
-
$4,389 USD
View
Price last confirmed 34 days ago
Retailer 8
-
$4,450 USD
View
Price last confirmed 23 days ago
Retailer 9
-
$4,450 USD
View
Price last confirmed 30 days ago
A
Retailer 10
-
$4,510 USD
View
A
Retailer 11
-
$5,100 USD
View
Final sale: no returns
B+
Retailer 12
-
$5,695 USD
View
B+
Retailer 13
-
$5,902 USD
View
Retailer 14
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$6,138 USD
View
Price last confirmed 23 days ago
B+
Retailer 15
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$6,138 USD
View
Retailer 16
-
$6,138 USD
View
Price last confirmed 33 days ago
B+
Retailer 17
-
$6,358 USD
£5,007 GBP
View
B+
Retailer 18
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$6,904 USD
£5,436 GBP
View
B+
Retailer 19
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$7,510 USD
View
B+
Retailer 20
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$7,550 USD
View
B+
Retailer 21
-
$8,051 USD
€7,668 EUR
View
B+
Retailer 22
-
$10,171 USD
£8,009 GBP
View
B
Retailer 23
-
$11,276 USD
View
B
Retailer 24
-
$11,292 USD
A$17,373 AUD
View
B
Retailer 25
-
$11,405 USD
ZAR 184,247 ZAR
View
B
Retailer 26
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$12,848 USD
View
Retailer 27
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$13,200 USD
View
Price last confirmed 9 days ago
B
Retailer 28
-
$16,252 USD
A$25,003 AUD
View
B
Retailer 29
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$17,487 USD
View
B
Retailer 30
-
$18,001 USD
SGD 24,326 SGD
View
Most Expensive
Do Amore Diamonds
27-CD9BDF00E · Nov 2
$26,390 USD
View
Price under review
30 more retailers have this diamond
Prices start from $3,488 USDSave up to $14,513 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
3.00ct Marquise
$3,488 USD