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Round|Lab Grown|IGI

5.05ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG578312998

Shape and cutting style on the report: Round brilliant

Certificate IGI LG578312998

Diamond specifications and retailer prices

From $9,460 AUD
$6,646 USD
As of October 29, 2026
Save $26,554 AUD (74%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $36,014 AUD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.05ct lab-grown round diamond

This 5.05ct lab-grown round sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG578312998 or 578312998. Listed at 22 retailers as of October 29, 2026, with prices from $9,460 to $36,014, a $26,554 spread on the same certified stone. Taylor and Hart lists it at $36,014. 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

5.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578312998
Dimensions11.06 × 11.09 × 6.67 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
11.06 mm11.09 mm5.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578312998
Side View
Table 59.0%Crown 34°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.2%

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 29
Current: $12,986 AUD|Low: $7,168 AUD|High: $30,899 AUD|Avg: $17,318 AUD|+2.3%
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
October 30, 2026
Retailer 3$9,460 AUD
Retailer 4$10,038 AUD
Retailer 11$12,059 AUD
Retailer 14$12,364 AUD
Retailer 10$12,369 AUD
Retailer 5$12,665 AUD
Retailer 1$12,986 AUD
Retailer 9$17,197 AUD
Retailer 13$19,529 AUD
Retailer 8$20,897 AUD
Retailer 7$21,124 AUD
Retailer 12$21,806 AUD
Retailer 2$30,660 AUD
Retailer 6$30,899 AUD

43 data points across 14 retailers

22 retailers$9,460 AUD to $36,014 AUD

Retailer 1
-
$8,963 AUD
$6,297 USD
Price last confirmed 19 days ago
Retailer 2
-
$9,322 AUD
$6,549 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$9,460 AUD
$6,646 USD
View
A
Retailer 4
-
$10,038 AUD
$7,052 USD
View
Final sale: no returns
Retailer 5
-
$10,398 AUD
$7,305 USD
View
Price last confirmed 13 days ago
Retailer 6
-
$10,398 AUD
$7,305 USD
View
Price last confirmed 13 days ago
Retailer 7
-
$12,059 AUD
$8,472 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$12,342 AUD
$8,671 USD
View
Price last confirmed 22 days ago
A
Retailer 9
-
$12,364 AUD
$8,686 USD
View
A
Retailer 10
-
$12,369 AUD
$8,690 USD
View
A
Retailer 11
-
$12,665 AUD
$8,898 USD
View
A
Retailer 12
-
$12,986 AUD
£7,184 GBP
View
A
Retailer 13
-
$17,197 AUD
€11,506 EUR
View
A
Retailer 14
-
$19,529 AUD
$13,720 USD
View
A
Retailer 15
-
$20,897 AUD
£11,560 GBP
View
A
Retailer 16
-
$21,124 AUD
ZAR 239,752 ZAR
View
Retailer 17
-
$21,806 AUD
View
Price last confirmed 7 days ago
B+
Retailer 18
-
$25,144 AUD
$17,665 USD
View
B+
Retailer 19
-
$28,932 AUD
$20,326 USD
View
B+
Retailer 20
-
$30,660 AUD
$21,540 USD
View
B+
Retailer 21
-
$30,899 AUD
$21,708 USD
View
Most Expensive
B
Taylor and Hart
AVK999A · Oct 30
$36,014 AUD
$25,302 USD
View
21 more retailers have this diamond
Prices start from $9,460 AUDSave up to $26,554 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
5.05ct Round
$9,460 AUD