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Round|Lab Grown|IGI

1.21ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG830622192

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830622192

Diamond specifications and retailer prices

From $258 USD
As of October 29, 2026
Save $1,522 USD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,780 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830622192 or 830622192. Listed at 19 retailers as of October 28, 2026, with prices from $258 to $1,780, a $1,522 spread on the same certified stone. Brilliant Earth lists it at $1,780. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830622192
Dimensions6.94 × 6.89 × 4.19 mm
L/W Ratio1.01
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
6.94 mm6.89 mm1.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830622192
Side View
Table 56.0%Crown 34.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
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 29
Current: $1,780 USD|Low: $289 USD|High: $2,090 USD|Avg: $872 USD|-14.8%
Brilliant Earth
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
October 29, 2026
Retailer 5$289 USD
Retailer 10$480 USD
Retailer 7$533 USD
Retailer 3$535 USD
Retailer 8$550 USD
Retailer 9$607 USD
Retailer 4$713 USD
Retailer 14$983 USD
Retailer 12$1,040 USD
Retailer 6$1,080 USD
Retailer 11$1,134 USD
Retailer 2$1,290 USD
Retailer 13$1,510 USD
Brilliant Earth$1,780 USD

38 data points across 14 retailers

19 retailers$258 USD to $1,780 USD

A+
Cheapest Retailer
-
$258 USD
A
Retailer 2
-
$289 USD
View
Final sale: no returns
A
Retailer 3
-
$299 USD
View
A
Retailer 4
-
$320 USD
View
A
Retailer 5
-
$320 USD
View
A
Retailer 6
-
$480 USD
View
A
Retailer 7
-
$533 USD
€508 EUR
View
A
Retailer 8
-
$535 USD
View
A
Retailer 9
-
$550 USD
ZAR 8,886 ZAR
View
A
Retailer 10
-
$607 USD
£478 GBP
View
B+
Retailer 11
-
$713 USD
View
B+
Retailer 12
-
$983 USD
View
B+
Retailer 13
-
$1,029 USD
View
B+
Retailer 14
-
$1,040 USD
SGD 1,406 SGD
View
B+
Retailer 15
-
$1,080 USD
View
B+
Retailer 16
-
$1,134 USD
View
B+
Retailer 17
-
$1,290 USD
£1,016 GBP
View
B+
Retailer 18
-
$1,510 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
21433752A · Oct 28
$1,780 USD
View
18 more retailers have this diamond
Prices start from $258 USDSave up to $1,522 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 Round
$258 USD