Marquise|Lab Grown|IGI

1.21ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG823694876

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG823694876

Diamond specifications and retailer prices

From $564 USD
As of October 30, 2026
Save $1,791 USD (76%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,053 USD at MOH London · As of October 21, 2026
View at MOH London

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823694876 or 823694876. Listed at 22 retailers as of October 30, 2026, with a 318% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823694876
Dimensions10.56 × 5.67 × 3.56 mm
L/W Ratio1.86
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
10.56 mm5.67 mm1.21 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823694876
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.8%

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: Oct 30
Current: $3,053 USD|Low: $542 USD|High: $3,073 USD|Avg: $1,377 USD|+0.5%
MOH London
Retailer 2
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Retailer 7
Retailer 8
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Retailer 22
October 30, 2026
Retailer 7$564 USD
Retailer 14$631 USD
Retailer 10$632 USD
Retailer 4$699 USD
Retailer 21$699 USD
Retailer 9$768 USD
Retailer 16$830 USD
Retailer 3$894 USD
Retailer 12$902 USD
Retailer 17$1,063 USD
Retailer 8$1,077 USD
Retailer 2$1,091 USD
Retailer 13$1,202 USD
Retailer 22$1,735 USD
Retailer 20$1,839 USD
Retailer 15$2,042 USD
Retailer 11$2,210 USD
Retailer 18$2,260 USD
Retailer 5$2,267 USD
Retailer 19$2,285 USD
Retailer 6$2,355 USD
MOH London$3,053 USD

41 data points across 22 retailers

22 retailers$564 USD to $2,355 USD

A
Cheapest Retailer
-
$564 USD
A
Retailer 2
-
$631 USD
View
Final sale: no returns
A
Retailer 3
-
$632 USD
View
Retailer 4
-
$699 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$699 USD
View
B+
Retailer 6
-
$768 USD
HK$6,000 HKD
View
B+
Retailer 7
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$830 USD
View
B+
Retailer 8
-
$894 USD
View
B+
Retailer 9
-
$902 USD
View
B+
Retailer 10
-
$1,063 USD
€1,012 EUR
View
B+
Retailer 11
-
$1,077 USD
View
B+
Retailer 12
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$1,091 USD
£859 GBP
View
B+
Retailer 13
-
$1,202 USD
ZAR 19,418 ZAR
View
B
Retailer 14
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$1,735 USD
View
B
Retailer 15
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$1,839 USD
View
B
Retailer 16
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$2,042 USD
£1,608 GBP
View
B
Retailer 17
-
$2,210 USD
SGD 2,986 SGD
View
B
Retailer 18
-
$2,260 USD
View
B
Retailer 19
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$2,267 USD
View
B
Retailer 20
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$2,285 USD
View
B
Retailer 21
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$2,355 USD
View
Most Expensive
MOH London
LG823694876 · Oct 21
$3,053 USD
£2,404 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $564 USDSave up to $1,791 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
$564 USD