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Round|Lab Grown|IGI

1.20ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG836610440

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836610440

Diamond specifications and retailer prices

From $278 USD
As of October 29, 2026
Save $1,442 USD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,720 USD at Brilliant Earth · As of October 28, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836610440 or 836610440. Listed at 18 retailers as of October 28, 2026, with prices from $278 to $1,720, a $1,442 spread on the same certified stone. Brilliant Earth lists it at $1,720. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836610440
Dimensions6.85 × 6.90 × 4.17 mm
L/W Ratio1.01
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
6.85 mm6.90 mm1.20 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836610440
Side View
Table 59.0%Crown 35°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,720 USD|Low: $278 USD|High: $1,720 USD|Avg: $768 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
October 29, 2026
Retailer 11$278 USD
Retailer 16$311 USD
Retailer 8$322 USD
Retailer 7$345 USD
Retailer 17$485 USD
Retailer 4$505 USD
Retailer 14$560 USD
Retailer 12$567 USD
Retailer 18$592 USD
Retailer 2$604 USD
Retailer 5$657 USD
Retailer 15$668 USD
Retailer 9$767 USD
Retailer 6$1,108 USD
Retailer 10$1,159 USD
Retailer 13$1,389 USD
Retailer 3$1,443 USD
Brilliant Earth$1,720 USD

4 data points across 18 retailers

18 retailers$278 USD to $1,720 USD

A
Cheapest Retailer
-
$278 USD
A
Retailer 2
-
$311 USD
View
Final sale: no returns
A
Retailer 3
-
$322 USD
View
A
Retailer 4
-
$345 USD
View
A
Retailer 5
-
$485 USD
View
A
Retailer 6
-
$505 USD
View
A
Retailer 7
-
$560 USD
£441 GBP
View
A
Retailer 8
-
$567 USD
€540 EUR
View
A
Retailer 9
-
$592 USD
ZAR 9,569 ZAR
View
A
Retailer 10
-
$604 USD
£475 GBP
View
B+
Retailer 11
-
$657 USD
View
B+
Retailer 12
-
$668 USD
View
B+
Retailer 13
-
$767 USD
View
B
Retailer 14
-
$1,108 USD
View
B
Retailer 15
-
$1,159 USD
View
B
Retailer 16
-
$1,389 USD
£1,094 GBP
View
B
Retailer 17
-
$1,443 USD
View
Most Expensive
B
Brilliant Earth
22318597A · Oct 28
$1,720 USD
View
17 more retailers have this diamond
Prices start from $278 USDSave up to $1,442 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
$278 USD