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Radiant|Lab Grown|IGI

1.51ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG836619932

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

Certificate IGI LG836619932

Diamond specifications and retailer prices

From $624 AUD
$438 USD
As of October 30, 2026
Save $3,548 AUD (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,869 AUD at Rare Carat · As of October 18, 2026
View at Rare Carat

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 LG836619932 or 836619932. Listed at 21 retailers as of October 30, 2026, with a 569% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836619932
Dimensions8.09 × 5.55 × 3.86 mm
L/W Ratio1.46
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
8.09 mm5.55 mm1.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836619932
Side View
Table 65.0%Crown 44.5°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 69.5%

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: $4,869 AUD|Low: $624 AUD|High: $5,623 AUD|Avg: $2,269 AUD|-0.4%
Rare Carat
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
October 31, 2026
Retailer 8$624 AUD
Retailer 19$699 AUD
Retailer 5$730 AUD
Retailer 7$773 AUD
Retailer 18$773 AUD
Retailer 17$975 AUD
Retailer 21$1,217 AUD
Retailer 20$1,233 AUD
Retailer 2$1,278 AUD
Retailer 16$1,330 AUD
Retailer 4$1,515 AUD
Retailer 3$1,866 AUD
Retailer 6$2,487 AUD
Retailer 9$2,535 AUD
Retailer 12$2,707 AUD
Retailer 11$2,795 AUD
Retailer 14$2,820 AUD
Retailer 15$2,975 AUD
Retailer 10$3,596 AUD
Retailer 13$4,171 AUD
Rare Carat$4,869 AUD

32 data points across 21 retailers

21 retailers$624 AUD to $4,171 AUD

A
Cheapest Retailer
-
$624 AUD
$438 USD
A
Retailer 2
-
$699 AUD
$491 USD
View
A
Retailer 3
-
$730 AUD
$513 USD
View
Final sale: no returns
A
Retailer 4
-
$773 AUD
$543 USD
View
A
Retailer 5
-
$773 AUD
$543 USD
View
A
Retailer 6
-
$975 AUD
$685 USD
View
A
Retailer 7
-
$1,217 AUD
$855 USD
View
Retailer 8
-
$1,233 AUD
€825 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
$1,278 AUD
£707 GBP
View
A
Retailer 10
-
$1,330 AUD
ZAR 15,088 ZAR
View
A
Retailer 11
-
$1,515 AUD
$1,064 USD
View
B+
Retailer 12
-
$1,866 AUD
$1,311 USD
View
B+
Retailer 13
-
$2,487 AUD
$1,747 USD
View
B+
Retailer 14
-
$2,535 AUD
$1,781 USD
View
B+
Retailer 15
-
$2,707 AUD
SGD 2,570 SGD
View
B
Retailer 16
-
$2,795 AUD
$1,963 USD
View
Retailer 17
-
$2,820 AUD
£1,560 GBP
View
Price last confirmed 21 days ago
B+
Retailer 18
-
$2,975 AUD
$2,090 USD
View
Retailer 19
-
$3,596 AUD
£1,989 GBP
View
Price last confirmed 12 days ago
B
Retailer 20
-
$4,171 AUD
$2,930 USD
View
Most Expensive
Rare Carat
JH-242814 · Oct 18
$4,869 AUD
$3,420 USD
View
Price last confirmed 12 days ago
20 more retailers have this diamond
Prices start from $624 AUDSave up to $3,548 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
$624 AUD