Oval|Lab Grown|IGI

1.21ct F FL Oval Lab Grown Diamond

ID • F/FL • IGI LG816615886

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816615886

Diamond specifications and retailer prices

From $231 USD
As of November 3, 2026
Save $1,699 USD (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,220 USD at Rare Carat · As of October 11, 2026
View at Rare Carat

About this 1.21ct lab-grown oval diamond

This 1.21ct lab-grown oval sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615886 or 816615886. Listed at 20 retailers as of November 3, 2026, with a 735% 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
F
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615886
Dimensions8.31 × 5.94 × 3.83 mm
L/W Ratio1.40
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
8.31 mm5.94 mm1.21 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615886
Side View
Table 56.0%Crown 33.8°Girdle: Slightly ThickPavilion 41.3°Culet: NoneDepth 64.5%

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: Nov 3
Current: $1,525 USD|Low: $231 USD|High: $2,750 USD|Avg: $837 USD|-31.3%
Rare Carat
Retailer 2
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Retailer 5
Retailer 6
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Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
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Retailer 19
November 5, 2026
Retailer 13$231 USD
Retailer 18$258 USD
Retailer 16$268 USD
Retailer 4$286 USD
Retailer 9$291 USD
Retailer 12$486 USD
Retailer 7$491 USD
Retailer 6$502 USD
Retailer 2$534 USD
Retailer 15$802 USD
Retailer 14$920 USD
Retailer 17$923 USD
Retailer 11$953 USD
Retailer 19$972 USD
Retailer 10$1,027 USD
Retailer 3$1,112 USD
Retailer 5$1,167 USD
Rare Carat$1,525 USD
Retailer 8$1,930 USD

33 data points across 19 retailers

20 retailers$231 USD to $1,930 USD

A
Cheapest Retailer
-
$231 USD
A
Retailer 2
-
$258 USD
View
Final sale: no returns
A
Retailer 3
-
$268 USD
View
A
Retailer 4
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$286 USD
View
Retailer 5
-
$291 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$486 USD
View
A
Retailer 7
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$491 USD
View
A
Retailer 8
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$502 USD
View
A
Retailer 9
-
$534 USD
View
B+
Retailer 10
-
$802 USD
View
B+
Retailer 11
-
$920 USD
View
B+
Retailer 12
-
$923 USD
View
B+
Retailer 13
-
$953 USD
View
B+
Retailer 14
-
$972 USD
View
B+
Retailer 15
-
$1,027 USD
View
B+
Retailer 16
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$1,112 USD
View
B+
Retailer 17
-
$1,167 USD
View
B
Retailer 18
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$1,525 USD
View
B
Retailer 19
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$1,930 USD
View
Most Expensive
Rare Carat
PD8866158JJ816 · Oct 11
$2,220 USD
View
Price last confirmed 25 days ago
19 more retailers have this diamond
Prices start from $231 USDSave up to $1,699 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 Oval
$231 USD