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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 €4,246 EUR
$4,744 USD
As of October 29, 2026
Save €24,969 EUR (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €29,216 EUR 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 3515707720. Listed at 15 retailers as of October 29, 2026, with prices from €4,246 to €29,216, a €24,969 spread on the same certified stone. Do Amore Diamonds lists it at €29,216. 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
Color
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: €29,216 EUR|Low: €4,151 EUR|High: €29,878 EUR|Avg: €9,933 EUR|-1.8%
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
November 1, 2026
Retailer 15€4,246 EUR
Retailer 10€4,450 EUR
Retailer 12€4,822 EUR
Retailer 14€5,394 EUR
Retailer 4€5,523 EUR
Retailer 11€6,251 EUR
Retailer 9€6,455 EUR
Retailer 2€7,618 EUR
Retailer 7€8,083 EUR
Retailer 8€9,397 EUR
Retailer 13€10,354 EUR
Retailer 3€11,281 EUR
Retailer 6€12,571 EUR
Retailer 5€21,106 EUR
Do Amore Diamonds€29,216 EUR

35 data points across 15 retailers

15 retailers€4,246 EUR to €29,216 EUR

A
Cheapest Retailer
-
€4,246 EUR
$4,744 USD
A
Retailer 2
-
€4,450 EUR
$4,972 USD
View
A
Retailer 3
-
€4,822 EUR
$5,387 USD
View
A
Retailer 4
-
€5,394 EUR
$6,026 USD
View
Final sale: no returns
A
Retailer 5
-
€5,523 EUR
$6,170 USD
View
B+
Retailer 6
-
€6,251 EUR
$6,984 USD
View
B+
Retailer 7
-
€6,455 EUR
$7,212 USD
View
B+
Retailer 8
-
€7,618 EUR
$8,511 USD
View
B+
Retailer 9
-
€8,083 EUR
$9,030 USD
View
B+
Retailer 10
-
€9,397 EUR
View
B+
Retailer 11
-
€10,354 EUR
$11,567 USD
View
B+
Retailer 12
-
€11,281 EUR
£9,924 GBP
View
B+
Retailer 13
-
€12,571 EUR
$14,045 USD
View
B
Retailer 14
-
€21,106 EUR
$23,580 USD
View
Most Expensive
B
Do Amore Diamonds
27-583E6BE5B · Oct 31
€29,216 EUR
$32,640 USD
View
14 more retailers have this diamond
Prices start from €4,246 EURSave up to €24,969 EUR

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
€4,246 EUR