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Round|Lab Grown|GIA

4.20ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 2516547474

Certificate GIA 2516547474

Diamond specifications and retailer prices

From $7,070 AUD
$4,966 USD
As of October 31, 2026
Save $37,795 AUD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $51,221 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.2ct lab-grown round diamond

This 4.2ct 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 2516547474. Listed at 20 retailers as of October 31, 2026, with a 535% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.20
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabGIA
CertificateGIA 2516547474
Dimensions10.28 × 10.32 × 6.43 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
10.28 mm10.32 mm4.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2516547474
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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 31
Current: $51,221 AUD|Low: $7,070 AUD|High: $55,691 AUD|Avg: $21,136 AUD|-0.5%
Do Amore Diamonds
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
October 30, 2026
Retailer 8$7,070 AUD
Retailer 3$7,445 AUD
Retailer 6$7,803 AUD
Retailer 4$8,637 AUD
Retailer 17$8,655 AUD
Retailer 5$11,318 AUD
Retailer 7$12,482 AUD
Retailer 15$13,980 AUD
Retailer 14$14,988 AUD
Retailer 12$19,503 AUD
Retailer 16$21,078 AUD
Retailer 11$21,949 AUD
Retailer 2$26,280 AUD
Retailer 13$26,280 AUD
Retailer 10$33,473 AUD
Retailer 18$33,568 AUD
Retailer 9$44,865 AUD
Do Amore Diamonds$51,221 AUD

29 data points across 18 retailers

20 retailers$7,070 AUD to $44,865 AUD

A
Cheapest Retailer
-
$7,070 AUD
$4,966 USD
A
Retailer 2
-
$7,445 AUD
$5,230 USD
View
A
Retailer 3
-
$7,803 AUD
$5,481 USD
View
A
Retailer 4
-
$8,637 AUD
$6,067 USD
View
Retailer 5
-
$8,637 AUD
$6,067 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$8,655 AUD
$6,080 USD
View
B+
Retailer 7
-
$11,318 AUD
$7,950 USD
View
B+
Retailer 8
-
$12,482 AUD
$8,768 USD
View
B+
Retailer 9
-
$13,980 AUD
$9,820 USD
View
B+
Retailer 10
-
$14,988 AUD
€10,027 EUR
View
B+
Retailer 11
-
$19,503 AUD
£10,787 GBP
View
Retailer 12
-
$21,078 AUD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$21,949 AUD
$15,418 USD
View
B
Retailer 14
-
$23,787 AUD
$16,709 USD
View
B+
Retailer 15
-
$26,280 AUD
$18,460 USD
View
B+
Retailer 16
-
$26,280 AUD
$18,460 USD
View
B
Retailer 17
-
$33,473 AUD
$23,513 USD
View
B
Retailer 18
-
$33,568 AUD
$23,580 USD
View
B
Retailer 19
-
$44,865 AUD
$31,515 USD
View
Most Expensive
Do Amore Diamonds
27-A9057A704 · Oct 31
$51,221 AUD
$35,980 USD
View
Price under review
19 more retailers have this diamond
Prices start from $7,070 AUDSave up to $37,795 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
4.20ct Round
$7,070 AUD