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Marquise|Lab Grown|IGI

1.21ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG700514301

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG700514301

Diamond specifications and retailer prices

From $370 USD
As of November 4, 2026
Save $3,190 USD (90%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $3,560 USD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG700514301 or 700514301. Listed at 29 retailers as of November 4, 2026, with prices from $370 to $3,560, a $3,190 spread on the same certified stone. Do Amore Diamonds lists it at $3,560. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700514301
Dimensions11.27 × 5.42 × 3.46 mm
L/W Ratio2.08
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
11.27 mm5.42 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700514301
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 63.8%

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: $3,560 USD|Low: $246 USD|High: $3,560 USD|Avg: $1,242 USD|+50.8%
Do Amore Diamonds
Retailer 2
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November 5, 2026
Retailer 16$246 USD
Retailer 20$370 USD
Retailer 15$497 USD
Retailer 13$500 USD
Retailer 17$563 USD
Retailer 23$595 USD
Retailer 14$634 USD
Retailer 12$728 USD
Retailer 2$746 USD
Retailer 10$780 USD
Retailer 7$946 USD
Retailer 5$958 USD
Retailer 19$1,033 USD
Retailer 22$1,170 USD
Retailer 21$1,351 USD
Retailer 11$1,510 USD
Retailer 6$1,511 USD
Retailer 3$1,530 USD
Retailer 4$1,616 USD
Retailer 9$1,801 USD
Retailer 18$1,830 USD
Retailer 8$2,016 USD
Do Amore Diamonds$3,560 USD

30 data points across 23 retailers

29 retailers$370 USD to $3,560 USD

Retailer 1
-
$246 USD
Price last confirmed 28 days ago
A
Retailer 2
-
$370 USD
View
Final sale: no returns
Retailer 3
-
$417 USD
View
Price last confirmed 36 days ago
Retailer 4
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$467 USD
View
Price last confirmed 37 days ago
Retailer 5
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$497 USD
View
Price last confirmed 28 days ago
Retailer 6
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$497 USD
View
Price last confirmed 26 days ago
A
Retailer 7
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$500 USD
View
Retailer 8
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$510 USD
View
Price last confirmed 37 days ago
A
Retailer 9
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$563 USD
View
A
Retailer 10
-
$595 USD
View
A
Retailer 11
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$634 USD
View
A
Retailer 12
-
$728 USD
View
A
Retailer 13
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$746 USD
View
B+
Retailer 14
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$780 USD
View
B+
Retailer 15
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$946 USD
View
B+
Retailer 16
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$958 USD
View
B+
Retailer 17
-
$1,033 USD
View
B+
Retailer 18
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$1,170 USD
View
B+
Retailer 19
-
$1,351 USD
View
Retailer 20
-
$1,510 USD
View
Price last confirmed 8 days ago
B
Retailer 21
-
$1,511 USD
View
B+
Retailer 22
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$1,530 USD
View
B
Retailer 23
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$1,616 USD
View
Retailer 24
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$1,765 USD
View
Price last confirmed 26 days ago
B
Retailer 25
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$1,801 USD
View
B
Retailer 26
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$1,830 USD
View
Retailer 27
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$1,833 USD
View
Price last confirmed 36 days ago
B
Retailer 28
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$2,016 USD
View
Most Expensive
B
Do Amore Diamonds
27-036702EDB · Nov 4
$3,560 USD
View
28 more retailers have this diamond
Prices start from $370 USDSave up to $3,190 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
1.21ct Marquise
$370 USD