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Round|Lab Grown|IGI

5.05ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG618431149

Shape and cutting style on the report: Round brilliant

Certificate IGI LG618431149

Diamond specifications and retailer prices

From $7,158 AUD
£3,960 GBP
As of October 29, 2026
Save $44,269 AUD (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $51,427 AUD at Do Amore Diamonds · As of October 28, 2026
View at Do Amore Diamonds

About this 5.05ct lab-grown round diamond

This 5.05ct lab-grown round sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG618431149 or 618431149. Listed at 18 retailers as of October 28, 2026, with prices from $7,158 to $51,427, a $44,269 spread on the same certified stone. Do Amore Diamonds lists it at $51,427. 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
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618431149
Dimensions10.95 × 11.00 × 6.79 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
10.95 mm11.00 mm5.05 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618431149
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A+
Exceptional
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: $51,427 AUD|Low: $7,124 AUD|High: $52,267 AUD|Avg: $17,533 AUD|-1.6%
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 11
Retailer 12
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Retailer 18
October 29, 2026
Retailer 12$7,158 AUD
Retailer 16$7,474 AUD
Retailer 4$7,833 AUD
Retailer 17$7,880 AUD
Retailer 9$8,506 AUD
Retailer 11$8,859 AUD
Retailer 14$8,861 AUD
Retailer 18$10,677 AUD
Retailer 3$11,360 AUD
Retailer 15$13,396 AUD
Retailer 13$16,108 AUD
Retailer 10$16,245 AUD
Retailer 2$19,578 AUD
Retailer 5$19,985 AUD
Retailer 6$20,356 AUD
Retailer 7$28,867 AUD
Retailer 8$37,514 AUD
Do Amore Diamonds$51,427 AUD

39 data points across 18 retailers

18 retailers$7,158 AUD to $51,427 AUD

A+
Cheapest Retailer
-
$7,158 AUD
£3,960 GBP
A
Retailer 2
-
$7,474 AUD
$5,251 USD
View
A
Retailer 3
-
$7,833 AUD
$5,503 USD
View
A
Retailer 4
-
$7,880 AUD
$5,536 USD
View
A
Retailer 5
-
$8,506 AUD
$5,976 USD
View
Final sale: no returns
A
Retailer 6
-
$8,859 AUD
$6,224 USD
View
A
Retailer 7
-
$8,861 AUD
$6,225 USD
View
A
Retailer 8
-
$10,555 AUD
$7,415 USD
View
A
Retailer 9
-
$10,677 AUD
$7,501 USD
View
A
Retailer 10
-
$11,360 AUD
$7,981 USD
View
A
Retailer 11
-
$13,396 AUD
$9,411 USD
View
A
Retailer 12
-
$16,108 AUD
€10,778 EUR
View
A
Retailer 13
-
$19,578 AUD
£10,830 GBP
View
A
Retailer 14
-
$19,985 AUD
$14,041 USD
View
Retailer 15
-
$20,356 AUD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$28,867 AUD
$20,280 USD
View
Retailer 17
-
$37,514 AUD
View
Price last confirmed 21 days ago
Most Expensive
B
Do Amore Diamonds
27-421C04D3D · Oct 28
$51,427 AUD
$36,130 USD
View
17 more retailers have this diamond
Prices start from $7,158 AUDSave up to $44,269 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
$7,158 AUD