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Round|Lab Grown|IGI

1.21ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG656491314

Shape and cutting style on the report: Round brilliant

Certificate IGI LG656491314

Diamond specifications and retailer prices

From $213 USD
As of November 1, 2026
Save $1,447 USD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,660 USD at Brilliant Earth · As of October 26, 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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG656491314 or 656491314. Listed at 22 retailers as of October 26, 2026, with prices from $213 to $1,660, a $1,447 spread on the same certified stone. Brilliant Earth lists it at $1,660. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656491314
Dimensions6.90 × 6.92 × 4.13 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.90 mm6.92 mm1.21 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656491314
Side View
Table 60.0%Crown 33.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.8%

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: Nov 1
Current: $1,660 USD|Low: $213 USD|High: $1,660 USD|Avg: $631 USD
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
November 1, 2026
Retailer 10$222 USD
Retailer 17$239 USD
Retailer 9$247 USD
Retailer 6$264 USD
Retailer 18$355 USD
Retailer 15$445 USD
Retailer 2$456 USD
Retailer 12$488 USD
Retailer 16$507 USD
Retailer 7$645 USD
Retailer 13$681 USD
Retailer 4$821 USD
Retailer 5$849 USD
Retailer 8$902 USD
Retailer 14$902 USD
Retailer 11$1,058 USD
Retailer 3$1,205 USD
Brilliant Earth$1,660 USD

42 data points across 18 retailers

22 retailers$213 USD to $1,660 USD

A
Cheapest Retailer
-
$213 USD
A
Retailer 2
-
$222 USD
View
A
Retailer 3
-
$239 USD
View
Final sale: no returns
A
Retailer 4
-
$247 USD
View
A
Retailer 5
-
$264 USD
View
Retailer 6
-
$275 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$355 USD
View
A
Retailer 8
-
$445 USD
€424 EUR
View
A
Retailer 9
-
$456 USD
ZAR 7,366 ZAR
View
A
Retailer 10
-
$488 USD
£384 GBP
View
A
Retailer 11
-
$507 USD
View
B+
Retailer 12
-
$645 USD
A$993 AUD
View
B+
Retailer 13
-
$681 USD
View
Retailer 14
-
$806 USD
View
Price last confirmed 34 days ago
B+
Retailer 15
-
$821 USD
View
B
Retailer 16
-
$849 USD
View
B
Retailer 17
-
$902 USD
View
B
Retailer 18
-
$902 USD
View
B
Retailer 19
-
$1,058 USD
£833 GBP
View
B
Retailer 20
-
$1,205 USD
View
B
Retailer 21
-
$1,660 USD
View
Most Expensive
B
Brilliant Earth
20628276A · Oct 26
$1,660 USD
View
21 more retailers have this diamond
Prices start from $213 USDSave up to $1,447 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
$213 USD