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Marquise|Lab Grown|IGI

3.09ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG826624385

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826624385

Diamond specifications and retailer prices

From $3,278 USD
As of November 2, 2026
Save $10,036 USD (75%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $16,845 USD at Novita Diamonds · As of September 29, 2026
View at Novita Diamonds

About this 3.09ct lab-grown marquise diamond

This 3.09ct 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 LG826624385 or 826624385. Listed at 23 retailers as of November 2, 2026, with a 306% 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

3.09
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826624385
Dimensions14.23 × 7.57 × 4.89 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
14.23 mm7.57 mm3.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826624385
Side View
Table 59.0%Crown 37.3°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
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: $5,012 USD|Low: $3,273 USD|High: $13,314 USD|Avg: $6,412 USD|-7.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
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Retailer 10
Retailer 11
Retailer 12
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Retailer 18
November 4, 2026
Retailer 4$3,278 USD
Retailer 15$3,671 USD
Retailer 5$3,701 USD
Retailer 6$3,802 USD
Retailer 3$3,960 USD
Retailer 7$4,751 USD
Retailer 13$4,847 USD
Retailer 1$5,012 USD
Retailer 8$5,806 USD
Retailer 14$5,902 USD
Retailer 18$5,943 USD
Retailer 2$6,150 USD
Retailer 10$7,740 USD
Retailer 17$8,624 USD
Retailer 11$8,853 USD
Retailer 12$9,507 USD
Retailer 16$9,636 USD
Retailer 9$13,314 USD

34 data points across 18 retailers

23 retailers$3,278 USD to $13,314 USD

A
Cheapest Retailer
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$3,278 USD
A
Retailer 2
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$3,671 USD
View
Final sale: no returns
A
Retailer 3
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$3,701 USD
View
A
Retailer 4
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$3,802 USD
View
A
Retailer 5
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$3,960 USD
View
Retailer 6
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$3,973 USD
View
Price last confirmed 36 days ago
Retailer 7
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$4,178 USD
View
Price last confirmed 36 days ago
A
Retailer 8
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$4,751 USD
View
A
Retailer 9
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$4,847 USD
View
A
Retailer 10
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$5,012 USD
View
Retailer 11
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$5,283 USD
View
Price last confirmed 8 days ago
A
Retailer 12
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$5,806 USD
View
B+
Retailer 13
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$5,902 USD
View
Retailer 14
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$5,943 USD
View
Price last confirmed 8 days ago
B+
Retailer 15
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$6,150 USD
View
B+
Retailer 16
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$7,740 USD
View
B+
Retailer 17
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$8,624 USD
View
B+
Retailer 18
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$8,853 USD
View
B+
Retailer 19
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$9,507 USD
View
B+
Retailer 20
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$9,636 USD
View
Retailer 21
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$12,270 USD
View
Price last confirmed 37 days ago
B
Retailer 22
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$13,314 USD
View
Most Expensive
Novita Diamonds
cert_826624385 · Sep 29
$16,845 USD
A$25,916 AUD
View
Price last confirmed 36 days ago
22 more retailers have this diamond
Prices start from $3,278 USDSave up to $10,036 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
3.09ct Marquise
$3,278 USD