Radiant|Lab Grown|IGI

1.27ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG840634757

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG840634757

Diamond specifications and retailer prices

From $192 USD
As of October 30, 2026
Save $1,798 USD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,990 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.27ct lab-grown radiant diamond

This 1.27ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840634757 or 840634757. Listed at 21 retailers as of October 29, 2026, with prices from $192 to $1,990, a $1,798 spread on the same certified stone. Brilliant Earth lists it at $1,990. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle47.3°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634757
Dimensions7.85 × 5.32 × 3.55 mm
L/W Ratio1.48
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
7.85 mm5.32 mm1.27 ctE / IF
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634757
Side View
Table 63.0%Crown 47.3°Girdle: MediumPavilion 35.6°Culet: NoneDepth 66.7%

Caratlytics Score

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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 30
Current: $1,990 USD|Low: $192 USD|High: $1,990 USD|Avg: $723 USD
Brilliant Earth
Retailer 2
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Retailer 5
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Retailer 7
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Retailer 21
October 30, 2026
Retailer 11$192 USD
Retailer 6$215 USD
Retailer 16$222 USD
Retailer 4$238 USD
Retailer 10$238 USD
Retailer 9$252 USD
Retailer 15$408 USD
Retailer 3$415 USD
Retailer 2$432 USD
Retailer 20$439 USD
Retailer 5$486 USD
Retailer 17$764 USD
Retailer 18$766 USD
Retailer 14$817 USD
Retailer 21$835 USD
Retailer 8$849 USD
Retailer 12$890 USD
Retailer 13$1,116 USD
Retailer 19$1,540 USD
Retailer 7$1,969 USD
Brilliant Earth$1,990 USD

15 data points across 21 retailers

21 retailers$192 USD to $1,990 USD

A
Cheapest Retailer
-
$192 USD
A
Retailer 2
-
$215 USD
View
Final sale: no returns
A
Retailer 3
-
$222 USD
View
A
Retailer 4
-
$238 USD
View
A
Retailer 5
-
$238 USD
View
Retailer 6
-
$252 USD
£199 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
$408 USD
ZAR 6,588 ZAR
View
A
Retailer 8
-
$415 USD
View
A
Retailer 9
-
$432 USD
£340 GBP
View
A
Retailer 10
-
$439 USD
€418 EUR
View
A
Retailer 11
-
$486 USD
View
B+
Retailer 12
-
$764 USD
View
B+
Retailer 13
-
$766 USD
View
B+
Retailer 14
-
$817 USD
View
B+
Retailer 15
-
$835 USD
View
B+
Retailer 16
-
$849 USD
SGD 1,147 SGD
View
B+
Retailer 17
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$890 USD
View
B+
Retailer 18
-
$1,116 USD
£879 GBP
View
Retailer 19
-
$1,540 USD
View
Price last confirmed 8 days ago
B
Retailer 20
-
$1,969 USD
View
Most Expensive
B
Brilliant Earth
22143126A · Oct 29
$1,990 USD
View
20 more retailers have this diamond
Prices start from $192 USDSave up to $1,798 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
1.27ct Radiant
$192 USD