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Marquise|Lab Grown|IGI

3.92ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG733567438

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG733567438

Diamond specifications and retailer prices

From $4,815 USD
As of November 2, 2026
Save $15,202 USD (76%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $20,017 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.92ct lab-grown marquise diamond

This 3.92ct 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 LG733567438 or 733567438. Listed at 22 retailers as of October 31, 2026, with prices from $4,815 to $20,017, a $15,202 spread on the same certified stone. Taylor and Hart lists it at $20,017. 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

3.92
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733567438
Dimensions15.47 × 7.97 × 5.34 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.47 mm7.97 mm3.92 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733567438
Side View
Table 61.0%Crown 41.8°Girdle: MED-STKPavilion 41°Culet: NoneDepth 67.0%

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: $7,114 USD|Low: $4,623 USD|High: $20,017 USD|Avg: $8,394 USD|-1.4%
Retailer 1
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Retailer 19
Taylor and Hart
November 2, 2026
Retailer 3$4,815 USD
Retailer 6$5,046 USD
Retailer 8$5,221 USD
Retailer 11$5,393 USD
Retailer 4$5,586 USD
Retailer 7$5,586 USD
Retailer 2$5,615 USD
Retailer 10$5,686 USD
Retailer 5$6,980 USD
Retailer 1$7,114 USD
Retailer 19$7,134 USD
Retailer 9$7,894 USD
Retailer 18$8,260 USD
Retailer 17$8,595 USD
Retailer 15$8,715 USD
Retailer 16$9,941 USD
Retailer 12$11,367 USD
Retailer 13$12,910 USD
Retailer 14$12,968 USD
Taylor and Hart$20,017 USD

37 data points across 20 retailers

22 retailers$4,815 USD to $20,017 USD

A
Cheapest Retailer
-
$4,815 USD
A
Retailer 2
-
$5,046 USD
View
A
Retailer 3
-
$5,221 USD
View
A
Retailer 4
-
$5,393 USD
View
Final sale: no returns
Retailer 5
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$5,586 USD
View
Price last confirmed 17 days ago
A
Retailer 6
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$5,586 USD
View
A
Retailer 7
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$5,615 USD
View
A
Retailer 8
-
$5,686 USD
View
A
Retailer 9
-
$6,980 USD
View
A
Retailer 10
-
$7,114 USD
£5,602 GBP
View
A
Retailer 11
-
$7,134 USD
View
B+
Retailer 12
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$7,894 USD
£6,216 GBP
View
B+
Retailer 13
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$8,260 USD
View
B+
Retailer 14
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$8,595 USD
View
B+
Retailer 15
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$8,715 USD
€8,300 EUR
View
B+
Retailer 16
-
$9,941 USD
View
B+
Retailer 17
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$10,802 USD
View
B+
Retailer 18
-
$11,367 USD
£8,950 GBP
View
B
Retailer 19
-
$12,910 USD
A$19,862 AUD
View
B+
Retailer 20
-
$12,968 USD
ZAR 209,507 ZAR
View
B
Retailer 21
-
$16,284 USD
View
Most Expensive
B
Taylor and Hart
TPRAA47 · Oct 31
$20,017 USD
View
21 more retailers have this diamond
Prices start from $4,815 USDSave up to $15,202 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
3.92ct Marquise
$4,815 USD