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Radiant|Lab Grown|IGI

1.27ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG831604107

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

Certificate IGI LG831604107

Diamond specifications and retailer prices

From $517 CAD
$370 USD
As of November 1, 2026
Save $4,093 CAD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,610 CAD 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831604107 or 831604107. Listed at 16 retailers as of October 31, 2026, with prices from $517 to $4,610, a $4,093 spread on the same certified stone. Brilliant Earth lists it at $4,610. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831604107
Dimensions7.86 × 5.25 × 3.47 mm
L/W Ratio1.50
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
7.86 mm5.25 mm1.27 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831604107
Side View
Table 65.0%Crown 42.9°Girdle: MediumPavilion 32.3°Culet: NoneDepth 66.1%

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: Nov 1
Current: $4,610 CAD|Low: $517 CAD|High: $4,610 CAD|Avg: $1,640 CAD
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
November 2, 2026
Retailer 4$517 CAD
Retailer 2$590 CAD
Retailer 3$626 CAD
Retailer 7$782 CAD
Retailer 13$789 CAD
Retailer 9$989 CAD
Retailer 15$996 CAD
Retailer 10$1,027 CAD
Retailer 14$1,208 CAD
Retailer 8$1,477 CAD
Retailer 5$1,836 CAD
Retailer 16$1,905 CAD
Retailer 6$2,070 CAD
Retailer 12$2,252 CAD
Retailer 11$2,299 CAD
Brilliant Earth$4,610 CAD

17 data points across 16 retailers

16 retailers$517 CAD to $4,610 CAD

A
Cheapest Retailer
-
$517 CAD
$370 USD
Final sale: no returns
A
Retailer 2
-
$590 CAD
£333 GBP
View
A
Retailer 3
-
$626 CAD
HK$3,500 HKD
View
A
Retailer 4
-
$782 CAD
$560 USD
View
A
Retailer 5
-
$789 CAD
$565 USD
View
A
Retailer 6
-
$989 CAD
ZAR 11,438 ZAR
View
A
Retailer 7
-
$996 CAD
€679 EUR
View
A
Retailer 8
-
$1,027 CAD
£579 GBP
View
B+
Retailer 9
-
$1,208 CAD
$865 USD
View
B+
Retailer 10
-
$1,477 CAD
$1,057 USD
View
B+
Retailer 11
-
$1,836 CAD
SGD 1,776 SGD
View
B+
Retailer 12
-
$1,905 CAD
$1,364 USD
View
B+
Retailer 13
-
$2,070 CAD
$1,482 USD
View
B+
Retailer 14
-
$2,252 CAD
$1,612 USD
View
B+
Retailer 15
-
$2,299 CAD
£1,296 GBP
View
Most Expensive
B
Brilliant Earth
22154082A · Oct 31
$4,610 CAD
$3,300 USD
View
15 more retailers have this diamond
Prices start from $517 CADSave up to $4,093 CAD

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
$517 CAD