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Round|Lab Grown|GIA

4.20ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 3515707720

Certificate GIA 3515707720

Diamond specifications and retailer prices

From HK$37,223 HKD
$4,744 USD
As of October 29, 2026
Save HK$223,591 HKD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$260,814 HKD at Do Amore Diamonds · As of October 28, 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 3515707720. Listed at 15 retailers as of October 28, 2026, with prices from HK$37,223 to HK$260,814, a HK$223,591 spread on the same certified stone. Do Amore Diamonds lists it at HK$260,814. 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 angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 3515707720
Dimensions10.38 × 10.41 × 6.35 mm
L/W Ratio1.00
Top View
10.38 mm10.41 mm4.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3515707720
Side View
Table 57.0%Crown 34°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.1%

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: HK$260,814 HKD|Low: HK$30,326 HKD|High: HK$261,913 HKD|Avg: HK$94,588 HKD
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
October 29, 2026
Retailer 2HK$37,223 HKD
Retailer 10HK$39,726 HKD
Retailer 11HK$42,983 HKD
Retailer 12HK$48,177 HKD
Retailer 3HK$48,412 HKD
Retailer 14HK$55,843 HKD
Retailer 15HK$57,616 HKD
Retailer 13HK$67,981 HKD
Retailer 6HK$70,853 HKD
Retailer 8HK$82,610 HKD
Retailer 7HK$92,486 HKD
Retailer 9HK$98,892 HKD
Retailer 5HK$110,201 HKD
Retailer 4HK$185,018 HKD
Do Amore DiamondsHK$260,814 HKD

34 data points across 15 retailers

15 retailersHK$37,223 HKD to HK$260,814 HKD

A
Cheapest Retailer
-
HK$37,223 HKD
$4,744 USD
A
Retailer 2
-
HK$39,726 HKD
$5,063 USD
View
A
Retailer 3
-
HK$42,983 HKD
$5,478 USD
View
A
Retailer 4
-
HK$48,177 HKD
$6,140 USD
View
Final sale: no returns
A
Retailer 5
-
HK$48,412 HKD
$6,170 USD
View
B+
Retailer 6
-
HK$55,843 HKD
$7,117 USD
View
B+
Retailer 7
-
HK$57,616 HKD
$7,343 USD
View
B+
Retailer 8
-
HK$67,981 HKD
$8,664 USD
View
B+
Retailer 9
-
HK$70,853 HKD
$9,030 USD
View
B+
Retailer 10
-
HK$82,610 HKD
€10,027 EUR
View
B+
Retailer 11
-
HK$92,486 HKD
$11,787 USD
View
B+
Retailer 12
-
HK$98,892 HKD
£9,924 GBP
View
B+
Retailer 13
-
HK$110,201 HKD
$14,045 USD
View
B
Retailer 14
-
HK$185,018 HKD
$23,580 USD
View
Most Expensive
B
Do Amore Diamonds
27-583E6BE5B · Oct 28
HK$260,814 HKD
$33,240 USD
View
14 more retailers have this diamond
Prices start from HK$37,223 HKDSave up to HK$223,591 HKD

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
HK$37,223 HKD