Marquise|Lab Grown|IGI

3.59ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG817690342

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817690342

Diamond specifications and retailer prices

From $3,755 USD
As of October 30, 2026
Save $11,642 USD (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $15,397 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.59ct lab-grown marquise diamond

This 3.59ct 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 LG817690342 or 817690342. Listed at 21 retailers as of October 30, 2026, with prices from $3,755 to $15,397, a $11,642 spread on the same certified stone. Taylor and Hart lists it at $15,397. 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

3.59
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817690342
Dimensions15.93 × 8.00 × 4.89 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.93 mm8.00 mm3.59 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817690342
Side View
Table 61.0%Crown 32.9°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 61.1%

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 30
Current: $5,701 USD|Low: $3,755 USD|High: $16,943 USD|Avg: $7,065 USD|-6.3%
Retailer 1
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Retailer 20
Taylor and Hart
November 2, 2026
Retailer 2$3,755 USD
Retailer 9$3,936 USD
Retailer 4$4,143 USD
Retailer 7$4,206 USD
Retailer 8$4,356 USD
Retailer 6$4,420 USD
Retailer 19$4,665 USD
Retailer 13$4,768 USD
Retailer 20$5,210 USD
Retailer 3$5,444 USD
Retailer 1$5,701 USD
Retailer 5$5,778 USD
Retailer 18$6,300 USD
Retailer 11$6,690 USD
Retailer 17$8,063 USD
Retailer 12$9,331 USD
Retailer 14$9,956 USD
Retailer 16$10,114 USD
Retailer 15$10,580 USD
Retailer 10$10,975 USD
Taylor and Hart$15,397 USD

37 data points across 21 retailers

21 retailers$3,755 USD to $15,397 USD

A
Cheapest Retailer
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$3,755 USD
A
Retailer 2
-
$3,936 USD
View
A
Retailer 3
-
$4,143 USD
View
A
Retailer 4
-
$4,206 USD
View
Final sale: no returns
A
Retailer 5
-
$4,356 USD
View
A
Retailer 6
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$4,420 USD
View
A
Retailer 7
-
$4,665 USD
View
Retailer 8
-
$4,768 USD
View
Price last confirmed 20 days ago
Retailer 9
-
$5,210 USD
£4,103 GBP
View
Price last confirmed 15 days ago
A
Retailer 10
-
$5,444 USD
View
A
Retailer 11
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$5,701 USD
£4,489 GBP
View
A
Retailer 12
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$5,778 USD
View
A
Retailer 13
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$6,300 USD
View
A
Retailer 14
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$6,690 USD
£5,268 GBP
View
B+
Retailer 15
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$8,063 USD
€7,679 EUR
View
B+
Retailer 16
-
$9,331 USD
£7,347 GBP
View
B+
Retailer 17
-
$9,956 USD
A$15,317 AUD
View
B+
Retailer 18
-
$10,114 USD
ZAR 163,390 ZAR
View
B+
Retailer 19
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$10,580 USD
View
B
Retailer 20
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$10,975 USD
View
Most Expensive
B
Taylor and Hart
8JYKCBQ · Oct 31
$15,397 USD
View
20 more retailers have this diamond
Prices start from $3,755 USDSave up to $11,642 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
3.59ct Marquise
$3,755 USD