Radiant|Lab Grown|IGI

1.21ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG799676982

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG799676982

Diamond specifications and retailer prices

From $375 USD
As of October 30, 2026
Save $2,765 USD (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,140 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG799676982 or 799676982. Listed at 22 retailers as of October 30, 2026, with prices from $375 to $3,140, a $2,765 spread on the same certified stone. Brilliant Earth lists it at $3,140. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799676982
Dimensions7.56 × 5.16 × 3.58 mm
L/W Ratio1.47
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
7.56 mm5.16 mm1.21 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799676982
Side View
Table 62.0%Crown 44.9°Girdle: MED-STKPavilion 34.7°Culet: NoneDepth 69.4%

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: Oct 30
Current: $3,140 USD|Low: $375 USD|High: $3,140 USD|Avg: $1,065 USD
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 4$375 USD
Retailer 8$419 USD
Retailer 18$434 USD
Retailer 7$464 USD
Retailer 21$464 USD
Retailer 3$512 USD
Retailer 17$615 USD
Retailer 6$705 USD
Retailer 9$742 USD
Retailer 2$744 USD
Retailer 16$798 USD
Retailer 20$812 USD
Retailer 13$839 USD
Retailer 19$1,303 USD
Retailer 12$1,483 USD
Retailer 5$1,493 USD
Retailer 14$1,532 USD
Retailer 11$1,751 USD
Retailer 10$1,798 USD
Retailer 15$1,825 USD
Brilliant Earth$3,140 USD

41 data points across 21 retailers

22 retailers$375 USD to $3,140 USD

A
Cheapest Retailer
-
$375 USD
A
Retailer 2
-
$419 USD
View
Final sale: no returns
A
Retailer 3
-
$434 USD
View
A
Retailer 4
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$464 USD
View
A
Retailer 5
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$464 USD
View
A
Retailer 6
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$512 USD
HK$4,000 HKD
View
A
Retailer 7
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$615 USD
View
A
Retailer 8
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$705 USD
View
B+
Retailer 9
-
$742 USD
View
B+
Retailer 10
-
$744 USD
€709 EUR
View
B+
Retailer 11
-
$798 USD
ZAR 12,893 ZAR
View
B+
Retailer 12
-
$812 USD
View
B+
Retailer 13
-
$839 USD
£661 GBP
View
B
Retailer 14
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$1,303 USD
View
B
Retailer 15
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$1,483 USD
SGD 2,004 SGD
View
B
Retailer 16
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$1,493 USD
View
B
Retailer 17
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$1,532 USD
View
B
Retailer 18
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$1,751 USD
View
B
Retailer 19
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$1,798 USD
£1,416 GBP
View
B
Retailer 20
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$1,825 USD
£1,437 GBP
View
Retailer 21
-
$2,301 USD
View
Price last confirmed 96 days ago
Most Expensive
B
Brilliant Earth
20584060A · Oct 31
$3,140 USD
View
21 more retailers have this diamond
Prices start from $375 USDSave up to $2,765 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 Radiant
$375 USD