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Round|Lab Grown|IGI

1.21ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG811638127

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811638127

Diamond specifications and retailer prices

From $329 SGD
$257 USD
As of October 29, 2026
Save $1,888 SGD (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,217 SGD at Brilliant Earth · As of October 29, 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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811638127 or 811638127. Listed at 20 retailers as of October 29, 2026, with prices from $329 to $2,217, a $1,888 spread on the same certified stone. Brilliant Earth lists it at $2,217. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811638127
Dimensions6.87 × 6.84 × 4.20 mm
L/W Ratio1.00
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
6.87 mm6.84 mm1.21 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811638127
Side View
Table 57.0%Crown 34.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.3%

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 29
Current: $2,217 SGD|Low: $324 SGD|High: $2,217 SGD|Avg: $971 SGD
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 8$329 SGD
Retailer 15$368 SGD
Retailer 4$382 SGD
Retailer 5$409 SGD
Retailer 10$409 SGD
Retailer 3$634 SGD
Retailer 12$676 SGD
Retailer 6$683 SGD
Retailer 13$702 SGD
Retailer 2$778 SGD
Retailer 7$845 SGD
Retailer 19$1,255 SGD
Retailer 18$1,312 SGD
Retailer 11$1,312 SGD
Retailer 9$1,379 SGD
Retailer 17$1,430 SGD
Retailer 14$1,639 SGD
Retailer 16$1,935 SGD
Brilliant Earth$2,217 SGD

38 data points across 19 retailers

20 retailers$329 SGD to $2,217 SGD

A+
Cheapest Retailer
-
$329 SGD
$257 USD
A
Retailer 2
-
$368 SGD
$287 USD
View
Final sale: no returns
A
Retailer 3
-
$382 SGD
$298 USD
View
A
Retailer 4
-
$409 SGD
$319 USD
View
A
Retailer 5
-
$409 SGD
$319 USD
View
Retailer 6
-
$414 SGD
$323 USD
View
Price last confirmed 59 days ago
A
Retailer 7
-
$634 SGD
$495 USD
View
A
Retailer 8
-
$676 SGD
€502 EUR
View
A
Retailer 9
-
$683 SGD
$533 USD
View
A
Retailer 10
-
$702 SGD
ZAR 8,845 ZAR
View
A
Retailer 11
-
$778 SGD
£478 GBP
View
B+
Retailer 12
-
$845 SGD
$659 USD
View
B+
Retailer 13
-
$1,255 SGD
$979 USD
View
B+
Retailer 14
-
$1,312 SGD
View
B+
Retailer 15
-
$1,312 SGD
$1,024 USD
View
B+
Retailer 16
-
$1,379 SGD
$1,076 USD
View
B+
Retailer 17
-
$1,430 SGD
$1,116 USD
View
B+
Retailer 18
-
$1,639 SGD
£1,007 GBP
View
Retailer 19
-
$1,935 SGD
$1,510 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21422382A · Oct 29
$2,217 SGD
$1,730 USD
View
19 more retailers have this diamond
Prices start from $329 SGDSave up to $1,888 SGD

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
$329 SGD