CaratHunter
Plans
Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG641494187

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

Certificate IGI LG641494187

Diamond specifications and retailer prices

From $405 AUD
$284 USD
As of November 2, 2026
Save $3,668 AUD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,073 AUD at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

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 LG641494187 or 641494187. Listed at 24 retailers as of November 2, 2026, with prices from $405 to $4,073, a $3,668 spread on the same certified stone. Diamond Quarter lists it at $4,073. 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 angle33.2°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641494187
Dimensions8.26 × 5.61 × 3.82 mm
L/W Ratio1.47
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
8.26 mm5.61 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641494187
Side View
Table 61.0%Crown 33.2°Girdle: MediumPavilion 33.1°Culet: NoneDepth 68.1%

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: Nov 2
Current: $572 AUD|Low: $390 AUD|High: $3,596 AUD|Avg: $1,318 AUD|-1.2%
Retailer 1
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
November 2, 2026
Retailer 2$405 AUD
Retailer 9$454 AUD
Retailer 20$471 AUD
Retailer 3$504 AUD
Retailer 13$504 AUD
Retailer 1$572 AUD
Retailer 16$728 AUD
Retailer 8$826 AUD
Retailer 6$875 AUD
Retailer 14$958 AUD
Retailer 12$990 AUD
Retailer 4$1,130 AUD
Retailer 15$1,295 AUD
Retailer 19$1,545 AUD
Retailer 7$1,785 AUD
Retailer 11$2,066 AUD
Retailer 10$2,082 AUD
Retailer 18$2,238 AUD
Retailer 17$3,082 AUD
Retailer 5$3,596 AUD

34 data points across 20 retailers

24 retailers$405 AUD to $4,073 AUD

A
Cheapest Retailer
-
$405 AUD
$284 USD
A
Retailer 2
-
$454 AUD
$318 USD
View
Final sale: no returns
A
Retailer 3
-
$471 AUD
$330 USD
View
Retailer 4
-
$504 AUD
$353 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$504 AUD
$353 USD
View
A
Retailer 6
-
$572 AUD
£315 GBP
View
A
Retailer 7
-
$712 AUD
HK$3,900 HKD
View
A
Retailer 8
-
$728 AUD
$510 USD
View
A
Retailer 9
-
$826 AUD
$579 USD
View
A
Retailer 10
-
$875 AUD
$613 USD
View
A
Retailer 11
-
$958 AUD
ZAR 10,841 ZAR
View
A
Retailer 12
-
$990 AUD
£546 GBP
View
A
Retailer 13
-
$1,130 AUD
$792 USD
View
A
Retailer 14
-
$1,295 AUD
View
B+
Retailer 15
-
$1,545 AUD
$1,083 USD
View
B+
Retailer 16
-
$1,785 AUD
$1,251 USD
View
B+
Retailer 17
-
$2,017 AUD
$1,414 USD
View
B+
Retailer 18
-
$2,066 AUD
SGD 1,957 SGD
View
B+
Retailer 19
-
$2,082 AUD
$1,459 USD
View
B+
Retailer 20
-
$2,153 AUD
£1,188 GBP
View
B+
Retailer 21
-
$2,238 AUD
£1,235 GBP
View
Retailer 22
-
$3,082 AUD
$2,160 USD
View
Price last confirmed 14 days ago
B
Retailer 23
-
$3,596 AUD
$2,520 USD
View
Most Expensive
B
Diamond Quarter
1.51IFELG87DFCEN · Nov 2
$4,073 AUD
£2,248 GBP
View
23 more retailers have this diamond
Prices start from $405 AUDSave up to $3,668 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
1.51ct Radiant
$405 AUD