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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 £3,695 GBP
$4,920 USD
As of October 29, 2026
Save £21,724 GBP (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £25,419 GBP at Do Amore Diamonds · As of October 28, 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 28, 2026, with prices from £3,695 to £25,419, a £21,724 spread on the same certified stone. Do Amore Diamonds lists it at £25,419. 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: £25,419 GBP|Low: £3,695 GBP|High: £25,419 GBP|Avg: £9,528 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4£3,695 GBP
Retailer 6£3,872 GBP
Retailer 8£5,153 GBP
Retailer 5£5,615 GBP
Retailer 3£7,977 GBP
Retailer 9£9,620 GBP
Retailer 2£9,677 GBP
Retailer 7£17,617 GBP
Do Amore Diamonds£25,419 GBP

7 data points across 9 retailers

8 retailers£3,695 GBP to £25,419 GBP

A
Cheapest Retailer
-
£3,695 GBP
$4,920 USD
A
Retailer 2
-
£3,872 GBP
$5,156 USD
View
A
Retailer 3
-
£4,231 GBP
$5,635 USD
View
Final sale: no returns
B+
Retailer 4
-
£5,615 GBP
$7,478 USD
View
B+
Retailer 5
-
£7,977 GBP
€10,117 EUR
View
B+
Retailer 6
-
£9,677 GBP
View
B
Retailer 7
-
£17,617 GBP
$23,460 USD
View
Most Expensive
B
Do Amore Diamonds
27-91704D0D9 · Oct 28
£25,419 GBP
$33,850 USD
View
7 more retailers have this diamond
Prices start from £3,695 GBPSave up to £21,724 GBP

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
£3,695 GBP