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Round|Lab Grown|IGI

1.20ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG685510748

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685510748

Diamond specifications and retailer prices

From $206 USD
As of October 29, 2026
Save $2,124 USD (91%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,330 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 LG685510748 or 685510748. Listed at 22 retailers as of October 29, 2026, with prices from $206 to $2,330, a $2,124 spread on the same certified stone. Brilliant Earth lists it at $2,330. 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 angle35.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685510748
Dimensions6.76 × 6.80 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.76 mm6.80 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685510748
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

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 29
Current: $2,330 USD|Low: $197 USD|High: $2,330 USD|Avg: $653 USD
Brilliant Earth
Retailer 2
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Retailer 4
Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 19
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Retailer 21
October 29, 2026
Retailer 20$206 USD
Retailer 8$230 USD
Retailer 14$238 USD
Retailer 4$255 USD
Retailer 5$255 USD
Retailer 21$282 USD
Retailer 9$345 USD
Retailer 17$431 USD
Retailer 15$466 USD
Retailer 2$468 USD
Retailer 7$498 USD
Retailer 16$623 USD
Retailer 6$632 USD
Retailer 11$819 USD
Retailer 19$822 USD
Retailer 12$868 USD
Retailer 3$873 USD
Retailer 13$1,198 USD
Retailer 18$1,205 USD
Retailer 10$1,211 USD
Brilliant Earth$2,330 USD

41 data points across 21 retailers

22 retailers$206 USD to $2,330 USD

A
Cheapest Retailer
-
$206 USD
A
Retailer 2
-
$230 USD
View
Final sale: no returns
A
Retailer 3
-
$238 USD
View
A
Retailer 4
-
$255 USD
View
A
Retailer 5
-
$255 USD
View
A
Retailer 6
-
$282 USD
HK$2,200 HKD
View
B+
Retailer 7
-
$345 USD
View
A
Retailer 8
-
$431 USD
ZAR 6,963 ZAR
View
A
Retailer 9
-
$466 USD
€444 EUR
View
A
Retailer 10
-
$468 USD
£369 GBP
View
A
Retailer 11
-
$498 USD
View
A
Retailer 12
-
$623 USD
A$959 AUD
View
B+
Retailer 13
-
$632 USD
View
B+
Retailer 14
-
$819 USD
View
B+
Retailer 15
-
$822 USD
View
B+
Retailer 16
-
$868 USD
View
B+
Retailer 17
-
$873 USD
View
B+
Retailer 18
-
$1,198 USD
£943 GBP
View
Retailer 19
-
$1,205 USD
View
Price last confirmed 11 days ago
B
Retailer 20
-
$1,211 USD
View
B
Retailer 21
-
$2,286 USD
£1,800 GBP
View
Most Expensive
B
Brilliant Earth
15027555A · Oct 29
$2,330 USD
View
21 more retailers have this diamond
Prices start from $206 USDSave up to $2,124 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
$206 USD