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Round|Lab Grown|GIA

4.50ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 5473905191

Certificate GIA 5473905191

Diamond specifications and retailer prices

From $10,468 AUD
$7,353 USD
As of October 29, 2026
Save $32,878 AUD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $43,345 AUD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 GIA 5473905191. Listed at 18 retailers as of October 29, 2026, with prices from $10,468 to $43,345, a $32,878 spread on the same certified stone. Taylor and Hart lists it at $43,345. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabGIA
CertificateGIA 5473905191
Dimensions10.67 × 10.62 × 6.49 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
10.67 mm10.62 mm4.50 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5473905191
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.0%

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: $21,241 AUD|Low: $10,049 AUD|High: $68,432 AUD|Avg: $24,818 AUD|-38.4%
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
Retailer 15
Retailer 16
Retailer 17
Taylor and Hart
October 31, 2026
Retailer 15$10,468 AUD
Retailer 6$10,878 AUD
Retailer 4$10,886 AUD
Retailer 14$12,072 AUD
Retailer 2$12,143 AUD
Retailer 17$12,143 AUD
Retailer 13$13,054 AUD
Retailer 5$13,301 AUD
Retailer 3$15,073 AUD
Retailer 9$15,306 AUD
Retailer 1$21,241 AUD
Retailer 11$25,015 AUD
Retailer 12$29,506 AUD
Retailer 16$30,402 AUD
Retailer 10$31,007 AUD
Taylor and Hart$43,345 AUD
Retailer 7$65,315 AUD
Retailer 8$68,159 AUD

33 data points across 18 retailers

18 retailers$10,468 AUD to $43,345 AUD

A
Cheapest Retailer
-
$10,468 AUD
$7,353 USD
A
Retailer 2
-
$10,878 AUD
$7,641 USD
View
A
Retailer 3
-
$10,886 AUD
$7,647 USD
View
B+
Retailer 4
-
$12,072 AUD
$8,480 USD
View
B+
Retailer 5
-
$12,143 AUD
$8,530 USD
View
Retailer 6
-
$12,143 AUD
$8,530 USD
View
Price last confirmed 14 days ago
Retailer 7
-
$13,054 AUD
$9,170 USD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$13,301 AUD
$9,343 USD
View
B+
Retailer 9
-
$15,073 AUD
$10,588 USD
View
B+
Retailer 10
-
$21,241 AUD
€14,210 EUR
View
B+
Retailer 11
-
$25,015 AUD
£13,836 GBP
View
B
Retailer 12
-
$26,302 AUD
$18,476 USD
View
Retailer 13
-
$29,506 AUD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$30,402 AUD
$21,356 USD
View
B
Retailer 15
-
$31,007 AUD
$21,781 USD
View
Most Expensive
B
Taylor and Hart
EB407M2 · Oct 30
$43,345 AUD
$30,448 USD
View
15 more retailers have this diamond
Prices start from $10,468 AUDSave up to $32,878 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
$10,468 AUD