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Round|Lab Grown|IGI

4.50ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG830618102

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830618102

Diamond specifications and retailer prices

From $6,706 AUD
HK$36,800 HKD
As of October 30, 2026
Save $21,601 AUD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $28,307 AUD at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.5ct lab-grown round diamond

This 4.5ct lab-grown round 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 LG830618102 or 830618102. Listed at 10 retailers as of October 30, 2026, with prices from $6,706 to $28,307, a $21,601 spread on the same certified stone. With Clarity lists it at $28,307. 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

4.50
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830618102
Dimensions10.70 × 10.63 × 6.43 mm
L/W Ratio1.01
Girdle conditionFaceted
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
10.70 mm10.63 mm4.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830618102
Side View
Table 59.0%Crown 33.9°Girdle: MediumPavilion 40.8°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 30
Current: $8,743 AUD|Low: $6,606 AUD|High: $28,307 AUD|Avg: $13,102 AUD|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 31, 2026
Retailer 7$6,706 AUD
Retailer 2$7,229 AUD
Retailer 5$8,240 AUD
Retailer 6$8,248 AUD
Retailer 1$8,743 AUD
Retailer 3$13,889 AUD
Retailer 4$17,660 AUD
Retailer 8$19,097 AUD
With Clarity$28,307 AUD

33 data points across 9 retailers

10 retailers$6,706 AUD to $28,307 AUD

A
Cheapest Retailer
-
$6,706 AUD
HK$36,800 HKD
A
Retailer 2
-
$7,229 AUD
£3,999 GBP
View
A
Retailer 3
-
$8,240 AUD
$5,788 USD
View
A
Retailer 4
-
$8,248 AUD
$5,794 USD
View
A
Retailer 5
-
$8,743 AUD
€5,849 EUR
View
B+
Retailer 6
-
$12,812 AUD
$9,000 USD
View
B+
Retailer 7
-
$13,889 AUD
£7,682 GBP
View
Retailer 8
-
$17,660 AUD
View
Price last confirmed 22 days ago
B
Retailer 9
-
$19,097 AUD
$13,414 USD
View
Most Expensive
B
With Clarity
830618102 · Oct 31
$28,307 AUD
$19,884 USD
View
9 more retailers have this diamond
Prices start from $6,706 AUDSave up to $21,601 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
4.50ct Round
$6,706 AUD