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Round|Lab Grown|GIA

4.50ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 6531746996

Certificate GIA 6531746996

Diamond specifications and retailer prices

From $12,334 AUD
£6,822 GBP
As of October 30, 2026
Save $25,762 AUD (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $38,096 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 6531746996. Listed at 8 retailers as of October 29, 2026, with prices from $12,334 to $38,096, a $25,762 spread on the same certified stone. Brilliant Earth lists it at $38,096. 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 angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6531746996
Dimensions10.61 × 10.54 × 6.56 mm
L/W Ratio1.01
Top View
10.61 mm10.54 mm4.50 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531746996
Side View
Table 56.0%Crown 34.5°GirdlePavilion 40.8°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $38,096 AUD|Low: $11,202 AUD|High: $79,109 AUD|Avg: $24,877 AUD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 9$11,821 AUD
Retailer 2$12,334 AUD
Retailer 4$12,418 AUD
Retailer 7$12,913 AUD
Retailer 8$14,200 AUD
Retailer 6$17,880 AUD
Retailer 10$21,302 AUD
Retailer 3$25,679 AUD
Brilliant Earth$38,096 AUD
Retailer 5$77,487 AUD

22 data points across 10 retailers

8 retailers$12,334 AUD to $38,096 AUD

B+
Cheapest Retailer
-
$12,334 AUD
£6,822 GBP
B+
Retailer 2
-
$12,418 AUD
$8,723 USD
View
B+
Retailer 3
-
$12,913 AUD
$9,071 USD
View
B+
Retailer 4
-
$14,200 AUD
$9,975 USD
View
Final sale: no returns
B+
Retailer 5
-
$17,880 AUD
$12,560 USD
View
B+
Retailer 6
-
$25,679 AUD
£14,203 GBP
View
Most Expensive
B
Brilliant Earth
16217029Y · Oct 29
$38,096 AUD
$26,760 USD
View
6 more retailers have this diamond
Prices start from $12,334 AUDSave up to $25,762 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.

B+
4.50ct Round
$12,334 AUD