Marquise|Lab Grown|IGI

1.21ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG795629390

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG795629390

Diamond specifications and retailer prices

From $236 USD
As of October 30, 2026
Save $2,034 USD (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,270 USD at Do Amore Diamonds · As of November 1, 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 LG795629390 or 795629390. Listed at 15 retailers as of October 30, 2026, with prices from $236 to $2,270, a $2,034 spread on the same certified stone. Do Amore Diamonds lists it at $2,270. 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 angle36.3°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG795629390
Dimensions11.00 × 5.35 × 3.46 mm
L/W Ratio2.06
Girdle conditionFaceted
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
11.00 mm5.35 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG795629390
Side View
Table 58.0%Crown 36.3°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 64.7%

Caratlytics Score

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A+
Exceptional
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: $2,270 USD|Low: $231 USD|High: $2,310 USD|Avg: $989 USD|-1.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 13$236 USD
Retailer 4$274 USD
Retailer 8$333 USD
Retailer 7$470 USD
Retailer 15$495 USD
Retailer 11$546 USD
Retailer 6$611 USD
Retailer 12$787 USD
Retailer 14$945 USD
Retailer 3$1,039 USD
Retailer 2$1,295 USD
Retailer 5$1,460 USD
Retailer 9$1,687 USD
Retailer 10$1,780 USD
Do Amore Diamonds$2,270 USD

37 data points across 15 retailers

15 retailers$236 USD to $2,270 USD

A+
Cheapest Retailer
-
$236 USD
A
Retailer 2
-
$274 USD
View
A
Retailer 3
-
$333 USD
£262 GBP
View
A
Retailer 4
-
$495 USD
View
A
Retailer 5
-
$546 USD
€520 EUR
View
A
Retailer 6
-
$611 USD
View
B+
Retailer 7
-
$787 USD
A$1,211 AUD
View
B+
Retailer 8
-
$945 USD
View
B+
Retailer 9
-
$1,039 USD
View
B+
Retailer 10
-
$1,295 USD
£1,020 GBP
View
B+
Retailer 11
-
$1,460 USD
View
B
Retailer 12
-
$1,460 USD
View
B+
Retailer 13
-
$1,687 USD
A$2,596 AUD
View
B
Retailer 14
-
$1,780 USD
View
Most Expensive
B
Do Amore Diamonds
27-595A3E66E · Nov 1
$2,270 USD
View
14 more retailers have this diamond
Prices start from $236 USDSave up to $2,034 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
$236 USD