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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 $473 SGD
$370 USD
As of November 1, 2026
Save $3,747 SGD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,220 SGD at Brilliant Earth · As of November 2, 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 November 1, 2026, with prices from $473 to $4,220, a $3,747 spread on the same certified stone. Brilliant Earth lists it at $4,220. 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: $4,220 SGD|Low: $473 SGD|High: $4,220 SGD|Avg: $1,501 SGD
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 5$473 SGD
Retailer 9$541 SGD
Retailer 4$573 SGD
Retailer 8$716 SGD
Retailer 14$723 SGD
Retailer 10$905 SGD
Retailer 16$912 SGD
Retailer 11$940 SGD
Retailer 15$1,106 SGD
Retailer 2$1,244 SGD
Retailer 6$1,681 SGD
Retailer 3$1,744 SGD
Retailer 7$1,895 SGD
Retailer 13$2,062 SGD
Retailer 12$2,105 SGD
Brilliant Earth$4,220 SGD

17 data points across 16 retailers

16 retailers$473 SGD to $4,220 SGD

A
Cheapest Retailer
-
$473 SGD
$370 USD
Final sale: no returns
A
Retailer 2
-
$541 SGD
£333 GBP
View
A
Retailer 3
-
$573 SGD
HK$3,500 HKD
View
A
Retailer 4
-
$716 SGD
$560 USD
View
A
Retailer 5
-
$723 SGD
$565 USD
View
A
Retailer 6
-
$905 SGD
ZAR 11,438 ZAR
View
A
Retailer 7
-
$912 SGD
€679 EUR
View
A
Retailer 8
-
$940 SGD
£579 GBP
View
B+
Retailer 9
-
$1,106 SGD
$865 USD
View
B+
Retailer 10
-
$1,244 SGD
$973 USD
View
B+
Retailer 11
-
$1,681 SGD
View
B+
Retailer 12
-
$1,744 SGD
$1,364 USD
View
B+
Retailer 13
-
$1,895 SGD
$1,482 USD
View
B+
Retailer 14
-
$2,062 SGD
$1,612 USD
View
B+
Retailer 15
-
$2,105 SGD
£1,296 GBP
View
Most Expensive
B
Brilliant Earth
22154082A · Nov 2
$4,220 SGD
$3,300 USD
View
15 more retailers have this diamond
Prices start from $473 SGDSave up to $3,747 SGD

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
$473 SGD