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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 $273 AUD
$192 USD
As of October 30, 2026
Save $2,560 AUD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,833 AUD at Brilliant Earth · As of October 31, 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 30, 2026, with prices from $273 to $2,833, a $2,560 spread on the same certified stone. Brilliant Earth lists it at $2,833. 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
Colour
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: $2,833 AUD|Low: $273 AUD|High: $2,833 AUD|Avg: $1,026 AUD
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
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 11$273 AUD
Retailer 6$306 AUD
Retailer 18$316 AUD
Retailer 4$339 AUD
Retailer 10$339 AUD
Retailer 9$359 AUD
Retailer 2$584 AUD
Retailer 3$591 AUD
Retailer 15$615 AUD
Retailer 16$626 AUD
Retailer 5$692 AUD
Retailer 17$857 AUD
Retailer 19$1,088 AUD
Retailer 14$1,164 AUD
Retailer 21$1,189 AUD
Retailer 8$1,208 AUD
Retailer 12$1,267 AUD
Retailer 13$1,580 AUD
Retailer 20$2,192 AUD
Retailer 7$2,803 AUD
Brilliant Earth$2,833 AUD

17 data points across 21 retailers

21 retailers$273 AUD to $2,833 AUD

A
Cheapest Retailer
-
$273 AUD
$192 USD
A
Retailer 2
-
$306 AUD
$215 USD
View
Final sale: no returns
A
Retailer 3
-
$316 AUD
$222 USD
View
Retailer 4
-
$339 AUD
$238 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$339 AUD
$238 USD
View
Retailer 6
-
$359 AUD
£199 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
$584 AUD
ZAR 6,624 ZAR
View
A
Retailer 8
-
$591 AUD
$415 USD
View
A
Retailer 9
-
$615 AUD
£340 GBP
View
A
Retailer 10
-
$626 AUD
€419 EUR
View
A
Retailer 11
-
$692 AUD
$486 USD
View
A
Retailer 12
-
$857 AUD
$602 USD
View
B+
Retailer 13
-
$1,088 AUD
$764 USD
View
B+
Retailer 14
-
$1,164 AUD
$817 USD
View
B+
Retailer 15
-
$1,189 AUD
$835 USD
View
B+
Retailer 16
-
$1,208 AUD
SGD 1,147 SGD
View
B+
Retailer 17
-
$1,267 AUD
$890 USD
View
B+
Retailer 18
-
$1,580 AUD
£874 GBP
View
Retailer 19
-
$2,192 AUD
$1,540 USD
View
Price last confirmed 11 days ago
B
Retailer 20
-
$2,803 AUD
$1,969 USD
View
Most Expensive
B
Brilliant Earth
22143126A · Oct 31
$2,833 AUD
$1,990 USD
View
20 more retailers have this diamond
Prices start from $273 AUDSave up to $2,560 AUD

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
$273 AUD