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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 $527 AUD
$370 USD
As of November 1, 2026
Save $4,171 AUD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,698 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 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 $527 to $4,698, a $4,171 spread on the same certified stone. Brilliant Earth lists it at $4,698. 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
Colour
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

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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: Nov 1
Current: $4,698 AUD|Low: $527 AUD|High: $4,698 AUD|Avg: $1,672 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
November 2, 2026
Retailer 4$527 AUD
Retailer 12$602 AUD
Retailer 3$638 AUD
Retailer 7$797 AUD
Retailer 13$804 AUD
Retailer 2$1,008 AUD
Retailer 15$1,015 AUD
Retailer 9$1,046 AUD
Retailer 14$1,231 AUD
Retailer 8$1,505 AUD
Retailer 5$1,871 AUD
Retailer 16$1,942 AUD
Retailer 6$2,110 AUD
Retailer 11$2,295 AUD
Retailer 10$2,343 AUD
Brilliant Earth$4,698 AUD

17 data points across 16 retailers

16 retailers$527 AUD to $4,698 AUD

A
Cheapest Retailer
-
$527 AUD
$370 USD
Final sale: no returns
A
Retailer 2
-
$602 AUD
£333 GBP
View
A
Retailer 3
-
$638 AUD
HK$3,500 HKD
View
A
Retailer 4
-
$797 AUD
$560 USD
View
A
Retailer 5
-
$804 AUD
$565 USD
View
A
Retailer 6
-
$1,008 AUD
ZAR 11,438 ZAR
View
A
Retailer 7
-
$1,015 AUD
€679 EUR
View
A
Retailer 8
-
$1,046 AUD
£579 GBP
View
B+
Retailer 9
-
$1,231 AUD
$865 USD
View
B+
Retailer 10
-
$1,505 AUD
$1,057 USD
View
B+
Retailer 11
-
$1,871 AUD
SGD 1,776 SGD
View
B+
Retailer 12
-
$1,942 AUD
$1,364 USD
View
B+
Retailer 13
-
$2,110 AUD
$1,482 USD
View
B+
Retailer 14
-
$2,295 AUD
$1,612 USD
View
B+
Retailer 15
-
$2,343 AUD
£1,296 GBP
View
Most Expensive
B
Brilliant Earth
22154082A · Oct 31
$4,698 AUD
$3,300 USD
View
15 more retailers have this diamond
Prices start from $527 AUDSave up to $4,171 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
$527 AUD