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Radiant|Lab Grown|IGI

4.56ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG731531300

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

Certificate IGI LG731531300

Diamond specifications and retailer prices

From $7,178 AUD
$5,048 USD
As of October 27, 2026
Save $42,205 AUD (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $49,383 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.56ct lab-grown radiant diamond

This 4.56ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731531300 or 731531300. Listed at 23 retailers as of October 27, 2026, with prices from $7,178 to $49,383, a $42,205 spread on the same certified stone. Do Amore Diamonds lists it at $49,383. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.56
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731531300
Dimensions11.72 × 8.08 × 5.51 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
11.72 mm8.08 mm4.56 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731531300
Side View
Table 63.0%Crown 47.1°Girdle: MediumPavilion 32.6°Culet: NoneDepth 68.2%

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: Oct 27
Current: $49,383 AUD|Low: $6,891 AUD|High: $49,383 AUD|Avg: $15,824 AUD
Do Amore Diamonds
Retailer 2
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Retailer 23
October 29, 2026
Retailer 22$7,178 AUD
Retailer 6$7,523 AUD
Retailer 9$7,687 AUD
Retailer 12$8,038 AUD
Retailer 3$8,327 AUD
Retailer 7$8,327 AUD
Retailer 21$8,361 AUD
Retailer 14$8,585 AUD
Retailer 20$10,441 AUD
Retailer 5$10,910 AUD
Retailer 8$11,120 AUD
Retailer 13$11,729 AUD
Retailer 19$12,136 AUD
Retailer 4$12,870 AUD
Retailer 11$13,067 AUD
Retailer 2$18,802 AUD
Retailer 17$19,485 AUD
Retailer 18$20,298 AUD
Retailer 23$21,134 AUD
Retailer 15$22,919 AUD
Retailer 16$32,188 AUD
Retailer 10$32,460 AUD
Do Amore Diamonds$49,383 AUD

41 data points across 23 retailers

23 retailers$7,178 AUD to $49,383 AUD

A
Cheapest Retailer
-
$7,178 AUD
$5,048 USD
Returns within 21 days
A
Retailer 2
-
$7,523 AUD
$5,291 USD
View
A
Retailer 3
-
$7,687 AUD
$5,406 USD
View
Returns within 30 days
A
Retailer 4
-
$8,038 AUD
$5,653 USD
View
Final sale: no returns
A
Retailer 5
-
$8,327 AUD
$5,856 USD
View
Returns within 30 days
A
Retailer 6
-
$8,327 AUD
$5,856 USD
View
Price last confirmed 12 days ago
Returns within 30 days
A
Retailer 7
-
$8,361 AUD
$5,880 USD
View
Returns within 40 days
A
Retailer 8
-
$8,585 AUD
$6,038 USD
View
Returns within 30 days
A
Retailer 9
-
$10,441 AUD
$7,343 USD
View
Returns within 30 days
A
Retailer 10
-
$10,910 AUD
$7,673 USD
View
Returns within 30 days
A
Retailer 11
-
$11,120 AUD
HK$61,100 HKD
View
B+
Retailer 12
-
$11,729 AUD
£6,495 GBP
View
Returns within 30 days
B+
Retailer 13
-
$12,136 AUD
$8,535 USD
View
Returns within 30 days
B+
Retailer 14
-
$12,870 AUD
$9,051 USD
View
Returns within 30 days
B+
Retailer 15
-
$13,067 AUD
£7,236 GBP
View
Returns within 30 days
B+
Retailer 16
-
$18,802 AUD
£10,412 GBP
View
B+
Retailer 17
-
$19,485 AUD
ZAR 221,385 ZAR
View
Returns within 7 days
B
Retailer 18
-
$20,298 AUD
View
B
Retailer 19
-
$21,134 AUD
$14,863 USD
View
Returns within 30 days
B
Retailer 20
-
$22,919 AUD
$16,119 USD
View
Returns within 30 days
B
Retailer 21
-
$32,188 AUD
SGD 30,591 SGD
View
Returns within 14 days
B
Retailer 22
-
$32,460 AUD
$22,829 USD
View
Returns within 90 days
Most Expensive
B
Do Amore Diamonds
27-6167FFFBC · Oct 29
$49,383 AUD
$34,730 USD
View
Returns within 60 days
22 more retailers have this diamond
Prices start from $7,178 AUDSave up to $42,205 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
4.56ct Radiant
$7,178 AUD