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Marquise|Lab Grown|IGI

1.51ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG754563700

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754563700

Diamond specifications and retailer prices

From $581 USD
As of November 4, 2026
Save $4,579 USD (89%) vs most expensive(unlock to see where)
35 retailers carry this diamond
Most expensive: $5,160 USD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754563700 or 754563700. Listed at 35 retailers as of November 4, 2026, with prices from $581 to $5,160, a $4,579 spread on the same certified stone. Do Amore Diamonds lists it at $5,160. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754563700
Dimensions12.21 × 5.93 × 3.66 mm
L/W Ratio2.06
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
12.21 mm5.93 mm1.51 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754563700
Side View
Table 62.0%Crown 33.8°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.7%

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 4
Current: $5,160 USD|Low: $581 USD|High: $5,730 USD|Avg: $1,831 USD|-9.9%
Do Amore Diamonds
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November 6, 2026
Retailer 5$581 USD
Retailer 22$729 USD
Retailer 13$837 USD
Retailer 21$849 USD
Retailer 24$850 USD
Retailer 3$985 USD
Retailer 16$993 USD
Retailer 6$1,122 USD
Retailer 19$1,177 USD
Retailer 2$1,210 USD
Retailer 17$1,370 USD
Retailer 14$1,518 USD
Retailer 8$1,789 USD
Retailer 20$1,879 USD
Retailer 12$1,886 USD
Retailer 7$2,093 USD
Retailer 10$2,301 USD
Retailer 18$2,316 USD
Retailer 9$2,393 USD
Retailer 4$2,684 USD
Retailer 15$2,700 USD
Retailer 11$2,843 USD
Retailer 23$3,128 USD
Do Amore Diamonds$5,160 USD

27 data points across 24 retailers

35 retailers$581 USD to $5,160 USD

A
Cheapest Retailer
-
$581 USD
Retailer 2
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$654 USD
View
Price last confirmed 29 days ago
Retailer 3
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$654 USD
View
Price last confirmed 37 days ago
Retailer 4
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$712 USD
View
Price last confirmed 38 days ago
A
Retailer 5
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$729 USD
View
Final sale: no returns
Retailer 6
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$749 USD
View
Price last confirmed 38 days ago
Retailer 7
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$759 USD
View
Price last confirmed 34 days ago
Retailer 8
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$759 USD
View
Price last confirmed 27 days ago
A
Retailer 9
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$837 USD
View
A
Retailer 10
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$849 USD
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A
Retailer 11
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$850 USD
View
A
Retailer 12
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$985 USD
View
A
Retailer 13
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$993 USD
View
A
Retailer 14
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$1,122 USD
View
A
Retailer 15
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$1,177 USD
View
A
Retailer 16
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$1,210 USD
View
A
Retailer 17
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$1,370 USD
View
A
Retailer 18
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$1,518 USD
View
B+
Retailer 19
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$1,789 USD
View
B+
Retailer 20
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$1,879 USD
View
B+
Retailer 21
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$1,886 USD
View
B+
Retailer 22
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$2,093 USD
View
B+
Retailer 23
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$2,301 USD
View
B+
Retailer 24
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$2,316 USD
View
Retailer 25
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$2,356 USD
View
Price last confirmed 27 days ago
Retailer 26
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$2,356 USD
View
Price last confirmed 37 days ago
B+
Retailer 27
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$2,393 USD
View
Retailer 28
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$2,484 USD
View
Price last confirmed 61 days ago
B+
Retailer 29
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$2,684 USD
View
B
Retailer 30
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$2,700 USD
View
B
Retailer 31
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$2,700 USD
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B+
Retailer 32
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$2,843 USD
View
B+
Retailer 33
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$3,128 USD
View
Retailer 34
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$3,524 USD
View
Price last confirmed 29 days ago
Most Expensive
B
Do Amore Diamonds
27-B2AB6C728 · Nov 6
$5,160 USD
View
34 more retailers have this diamond
Prices start from $581 USDSave up to $4,579 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
1.51ct Marquise
$581 USD