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Round|Lab Grown|IGI

4.53ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG780615544

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780615544

Diamond specifications and retailer prices

From $3,478 AUD
$2,443 USD
As of October 29, 2026
Save $16,837 AUD (83%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $20,315 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.53ct lab-grown round diamond

This 4.53ct 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 LG780615544 or 780615544. Listed at 24 retailers as of October 29, 2026, with prices from $3,478 to $20,315, a $16,837 spread on the same certified stone. Brilliant Earth lists it at $20,315. 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

4.53
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780615544
Dimensions10.60 × 10.53 × 6.52 mm
L/W Ratio1.01
Girdle conditionFaceted
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
10.60 mm10.53 mm4.53 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780615544
Side View
Table 57.0%Crown 34.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
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 29
Current: $20,315 AUD|Low: $3,478 AUD|High: $38,338 AUD|Avg: $9,499 AUD|-47.0%
Brilliant Earth
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
October 31, 2026
Retailer 15$3,478 AUD
Retailer 18$4,034 AUD
Retailer 14$4,259 AUD
Retailer 7$4,285 AUD
Retailer 12$5,534 AUD
Retailer 6$5,545 AUD
Retailer 2$6,047 AUD
Retailer 9$6,121 AUD
Retailer 17$6,411 AUD
Retailer 3$7,925 AUD
Retailer 13$8,587 AUD
Retailer 10$8,657 AUD
Retailer 16$10,859 AUD
Retailer 8$11,281 AUD
Retailer 5$11,335 AUD
Retailer 4$14,080 AUD
Retailer 19$14,800 AUD
Retailer 11$16,917 AUD
Brilliant Earth$20,315 AUD

26 data points across 19 retailers

24 retailers$3,478 AUD to $20,315 AUD

A
Cheapest Retailer
-
$3,478 AUD
$2,443 USD
A
Retailer 2
-
$4,034 AUD
$2,834 USD
View
Retailer 3
-
$4,251 AUD
$2,986 USD
View
Price last confirmed 37 days ago
A
Retailer 4
-
$4,259 AUD
$2,992 USD
View
Final sale: no returns
Retailer 5
-
$4,284 AUD
$3,009 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$4,285 AUD
$3,010 USD
View
Retailer 7
-
$4,470 AUD
$3,140 USD
View
Price last confirmed 33 days ago
A
Retailer 8
-
$5,534 AUD
£3,061 GBP
View
A
Retailer 9
-
$5,545 AUD
$3,895 USD
View
A
Retailer 10
-
$6,047 AUD
$4,248 USD
View
A
Retailer 11
-
$6,121 AUD
$4,300 USD
View
Retailer 12
-
$6,230 AUD
$4,376 USD
View
Price last confirmed 34 days ago
A
Retailer 13
-
$6,411 AUD
€4,289 EUR
View
A
Retailer 14
-
$7,925 AUD
$5,567 USD
View
A
Retailer 15
-
$8,587 AUD
ZAR 97,445 ZAR
View
Retailer 16
-
$8,657 AUD
View
Price last confirmed 8 days ago
B+
Retailer 17
-
$10,243 AUD
$7,195 USD
View
B+
Retailer 18
-
$10,859 AUD
£6,006 GBP
View
B+
Retailer 19
-
$11,281 AUD
$7,924 USD
View
B+
Retailer 20
-
$11,335 AUD
$7,962 USD
View
B+
Retailer 21
-
$14,080 AUD
$9,890 USD
View
B+
Retailer 22
-
$14,800 AUD
$10,396 USD
View
Retailer 23
-
$16,917 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
20863028A · Oct 30
$20,315 AUD
$14,270 USD
View
23 more retailers have this diamond
Prices start from $3,478 AUDSave up to $16,837 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
4.53ct Round
$3,478 AUD