CaratHunter
Plans
Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG771614878

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

Certificate IGI LG771614878

Diamond specifications and retailer prices

From $371 SGD
$290 USD
As of October 30, 2026
Save $2,851 SGD (88%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $3,222 SGD at Brilliant Earth · As of October 30, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG771614878 or 771614878. Listed at 26 retailers as of October 30, 2026, with prices from $371 to $3,222, a $2,851 spread on the same certified stone. Brilliant Earth lists it at $3,222. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771614878
Dimensions8.08 × 5.57 × 3.86 mm
L/W Ratio1.45
Culet sizePointed
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
8.08 mm5.57 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771614878
Side View
Table 65.0%Crown 42.8°Girdle: Slightly ThickPavilion 34°Culet: NoneDepth 69.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,222 SGD|Low: $371 SGD|High: $4,449 SGD|Avg: $1,358 SGD|-27.6%
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
Retailer 22
Retailer 23
Retailer 24
Retailer 25
October 31, 2026
Retailer 7$371 SGD
Retailer 8$413 SGD
Retailer 25$430 SGD
Retailer 14$459 SGD
Retailer 24$459 SGD
Retailer 13$474 SGD
Retailer 17$507 SGD
Retailer 23$658 SGD
Retailer 2$749 SGD
Retailer 12$756 SGD
Retailer 22$789 SGD
Retailer 6$791 SGD
Retailer 19$813 SGD
Retailer 21$1,068 SGD
Retailer 3$1,294 SGD
Retailer 5$1,411 SGD
Retailer 18$1,472 SGD
Retailer 4$1,477 SGD
Retailer 11$1,539 SGD
Retailer 16$1,767 SGD
Retailer 10$1,792 SGD
Retailer 20$1,851 SGD
Retailer 15$1,892 SGD
Retailer 9$2,908 SGD
Brilliant Earth$3,222 SGD

32 data points across 25 retailers

26 retailers$371 SGD to $3,222 SGD

A
Cheapest Retailer
-
$371 SGD
$290 USD
A
Retailer 2
-
$413 SGD
$323 USD
View
Final sale: no returns
A
Retailer 3
-
$430 SGD
$336 USD
View
A
Retailer 4
-
$459 SGD
$359 USD
View
A
Retailer 5
-
$459 SGD
$359 USD
View
A
Retailer 6
-
$474 SGD
£292 GBP
View
A
Retailer 7
-
$507 SGD
HK$3,100 HKD
View
A
Retailer 8
-
$658 SGD
$515 USD
View
A
Retailer 9
-
$749 SGD
€558 EUR
View
A
Retailer 10
-
$756 SGD
$591 USD
View
A
Retailer 11
-
$789 SGD
ZAR 9,975 ZAR
View
A
Retailer 12
-
$791 SGD
$619 USD
View
A
Retailer 13
-
$813 SGD
£500 GBP
View
A
Retailer 14
-
$1,068 SGD
A$1,285 AUD
View
B+
Retailer 15
-
$1,294 SGD
$1,012 USD
View
B+
Retailer 16
-
$1,411 SGD
$1,104 USD
View
B+
Retailer 17
-
$1,472 SGD
View
B+
Retailer 18
-
$1,477 SGD
$1,155 USD
View
B+
Retailer 19
-
$1,539 SGD
$1,204 USD
View
B+
Retailer 20
-
$1,647 SGD
$1,288 USD
View
B+
Retailer 21
-
$1,767 SGD
$1,382 USD
View
B+
Retailer 22
-
$1,792 SGD
£1,104 GBP
View
B+
Retailer 23
-
$1,851 SGD
£1,140 GBP
View
B+
Retailer 24
-
$1,892 SGD
$1,480 USD
View
Retailer 25
-
$2,908 SGD
$2,275 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
19064245A · Oct 30
$3,222 SGD
$2,520 USD
View
25 more retailers have this diamond
Prices start from $371 SGDSave up to $2,851 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
$371 SGD