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Round|Lab Grown|GIA

4.18ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 1515744293

Certificate GIA 1515744293

Diamond specifications and retailer prices

From £3,909 GBP
$5,206 USD
As of October 29, 2026
Save £19,532 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £26,898 GBP at Do Amore Diamonds · As of October 29, 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 1515744293. Listed at 16 retailers as of October 29, 2026, with a 500% 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

4.18
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 1515744293
Dimensions10.32 × 10.33 × 6.33 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Top View
10.32 mm10.33 mm4.18 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1515744293
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.3%

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: £26,898 GBP|Low: £3,753 GBP|High: £27,033 GBP|Avg: £10,398 GBP|-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
October 30, 2026
Retailer 10£3,909 GBP
Retailer 14£4,097 GBP
Retailer 4£4,108 GBP
Retailer 12£4,535 GBP
Retailer 9£4,547 GBP
Retailer 13£5,942 GBP
Retailer 3£6,553 GBP
Retailer 8£7,868 GBP
Retailer 7£10,241 GBP
Retailer 11£11,244 GBP
Retailer 2£11,524 GBP
Retailer 6£17,589 GBP
Retailer 5£23,441 GBP
Do Amore Diamonds£26,898 GBP

28 data points across 14 retailers

16 retailers£3,909 GBP to £23,441 GBP

A
Cheapest Retailer
-
£3,909 GBP
$5,206 USD
A
Retailer 2
-
£4,097 GBP
$5,456 USD
View
A
Retailer 3
-
£4,108 GBP
$5,471 USD
View
A
Retailer 4
-
£4,535 GBP
$6,039 USD
View
Retailer 5
-
£4,535 GBP
$6,039 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
£4,547 GBP
$6,055 USD
View
B+
Retailer 7
-
£5,942 GBP
$7,913 USD
View
B+
Retailer 8
-
£6,553 GBP
$8,726 USD
View
B+
Retailer 9
-
£7,868 GBP
€9,979 EUR
View
B+
Retailer 10
-
£10,241 GBP
View
B
Retailer 11
-
£11,244 GBP
$14,974 USD
View
B+
Retailer 12
-
£11,524 GBP
$15,346 USD
View
B
Retailer 13
-
£12,510 GBP
$16,660 USD
View
B
Retailer 14
-
£17,589 GBP
$23,423 USD
View
B
Retailer 15
-
£23,441 GBP
$31,216 USD
View
Most Expensive
Do Amore Diamonds
27-0A710EC7F · Oct 29
£26,898 GBP
$35,820 USD
View
Price under review
15 more retailers have this diamond
Prices start from £3,909 GBPSave up to £19,532 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
£3,909 GBP