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Radiant|Lab Grown|IGI

1.51ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG800679081

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

Certificate IGI LG800679081

Diamond specifications and retailer prices

From $835 SGD
HK$5,100 HKD
As of October 31, 2026
Save $2,834 SGD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,669 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800679081 or 800679081. Listed at 10 retailers as of October 31, 2026, with prices from $835 to $3,669, a $2,834 spread on the same certified stone. Brilliant Earth lists it at $3,669. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800679081
Dimensions8.12 × 5.86 × 3.72 mm
L/W Ratio1.39
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
8.12 mm5.86 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800679081
Side View
Table 59.0%Crown 45.7°Girdle: Slightly ThickPavilion 33.4°Culet: NoneDepth 63.5%

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: Oct 31
Current: $3,669 SGD|Low: $835 SGD|High: $5,050 SGD|Avg: $2,292 SGD|-27.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 5$835 SGD
Retailer 9$1,029 SGD
Retailer 2$1,119 SGD
Retailer 3$1,206 SGD
Retailer 8$1,370 SGD
Retailer 7$1,699 SGD
Retailer 6$2,380 SGD
Retailer 10$2,509 SGD
Retailer 4$2,677 SGD
Brilliant Earth$3,669 SGD

42 data points across 10 retailers

10 retailers$835 SGD to $3,669 SGD

A
Cheapest Retailer
-
$835 SGD
HK$5,100 HKD
A
Retailer 2
-
$1,029 SGD
$805 USD
View
A
Retailer 3
-
$1,119 SGD
€834 EUR
View
A
Retailer 4
-
$1,206 SGD
£743 GBP
View
B+
Retailer 5
-
$1,370 SGD
$1,072 USD
View
B+
Retailer 6
-
$1,699 SGD
$1,329 USD
View
B
Retailer 7
-
$2,380 SGD
$1,862 USD
View
B
Retailer 8
-
$2,509 SGD
$1,963 USD
View
B
Retailer 9
-
$2,677 SGD
£1,649 GBP
View
Most Expensive
B
Brilliant Earth
20788319A · Oct 31
$3,669 SGD
$2,870 USD
View
9 more retailers have this diamond
Prices start from $835 SGDSave up to $2,834 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
1.51ct Radiant
$835 SGD