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Round|Lab Grown|GIA

4.18ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 1528600643

Certificate GIA 1528600643

Diamond specifications and retailer prices

From $7,004 AUD
$4,920 USD
As of October 29, 2026
Save $41,185 AUD (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $48,189 AUD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.18ct lab-grown round diamond

This 4.18ct 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 1528600643. Listed at 8 retailers as of October 29, 2026, with prices from $7,004 to $48,189, a $41,185 spread on the same certified stone. Do Amore Diamonds lists it at $48,189. 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

4.18
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 1528600643
Dimensions10.37 × 10.32 × 6.39 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
10.37 mm10.32 mm4.18 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1528600643
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

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: $48,189 AUD|Low: $6,876 AUD|High: $49,271 AUD|Avg: $18,125 AUD|-2.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 4$7,004 AUD
Retailer 6$7,340 AUD
Retailer 8$8,022 AUD
Retailer 9$9,768 AUD
Retailer 5$10,646 AUD
Retailer 2$15,081 AUD
Retailer 10$18,237 AUD
Retailer 3$18,345 AUD
Retailer 7$33,398 AUD
Do Amore Diamonds$48,189 AUD

28 data points across 10 retailers

8 retailers$7,004 AUD to $48,189 AUD

A
Cheapest Retailer
-
$7,004 AUD
$4,920 USD
A
Retailer 2
-
$7,340 AUD
$5,156 USD
View
A
Retailer 3
-
$8,022 AUD
$5,635 USD
View
Final sale: no returns
B+
Retailer 4
-
$10,646 AUD
$7,478 USD
View
B+
Retailer 5
-
$15,081 AUD
€10,089 EUR
View
B+
Retailer 6
-
$18,345 AUD
£10,147 GBP
View
B
Retailer 7
-
$33,398 AUD
$23,460 USD
View
Most Expensive
B
Do Amore Diamonds
27-91704D0D9 · Oct 30
$48,189 AUD
$33,850 USD
View
7 more retailers have this diamond
Prices start from $7,004 AUDSave up to $41,185 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
4.18ct Round
$7,004 AUD