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Round|Lab Grown|IGI

1.20ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG812621638

Shape and cutting style on the report: Round brilliant

Certificate IGI LG812621638

Diamond specifications and retailer prices

From $220 USD
As of October 28, 2026
Save $1,340 USD (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,560 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812621638 or 812621638. Listed at 18 retailers as of October 28, 2026, with prices from $220 to $1,560, a $1,340 spread on the same certified stone. Brilliant Earth lists it at $1,560. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812621638
Dimensions6.92 × 6.89 × 4.15 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
6.92 mm6.89 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812621638
Side View
Table 59.0%Crown 33.3°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 60.0%

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: Oct 28
Current: $1,560 USD|Low: $156 USD|High: $1,610 USD|Avg: $683 USD|-3.1%
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
October 29, 2026
Retailer 3$220 USD
Retailer 7$252 USD
Retailer 15$345 USD
Retailer 8$415 USD
Retailer 9$419 USD
Retailer 2$445 USD
Retailer 4$518 USD
Retailer 10$595 USD
Retailer 14$629 USD
Retailer 13$787 USD
Retailer 5$838 USD
Retailer 11$1,143 USD
Retailer 6$1,183 USD
Retailer 12$1,200 USD
Brilliant Earth$1,560 USD

36 data points across 15 retailers

18 retailers$220 USD to $1,560 USD

A
Retailer 1
-
$197 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$220 USD
View
Final sale: no returns
A
Retailer 3
-
$244 USD
View
Price last confirmed 17 days ago
A
Retailer 4
-
$244 USD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
$345 USD
View
A
Retailer 6
-
$415 USD
€395 EUR
View
A
Retailer 7
-
$419 USD
ZAR 6,769 ZAR
View
A
Retailer 8
-
$445 USD
£350 GBP
View
A
Retailer 9
-
$518 USD
View
A
Retailer 10
-
$595 USD
A$916 AUD
View
B+
Retailer 11
-
$629 USD
View
B+
Retailer 12
-
$784 USD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
$787 USD
View
B+
Retailer 14
-
$838 USD
View
B
Retailer 15
-
$1,143 USD
£900 GBP
View
B
Retailer 16
-
$1,183 USD
View
B
Retailer 17
-
$1,200 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
20913343A · Oct 29
$1,560 USD
View
17 more retailers have this diamond
Prices start from $220 USDSave up to $1,340 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
1.20ct Round
$220 USD