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Round|Lab Grown|GIA

4.18ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 1525063977

Certificate GIA 1525063977

Diamond specifications and retailer prices

From £3,704 GBP
$4,932 USD
As of October 28, 2026
Save £19,737 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £29,234 GBP at Zales · As of October 28, 2026
View at Zales

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 1525063977. Listed at 19 retailers as of October 28, 2026, with a 533% 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 1525063977
Dimensions10.31 × 10.34 × 6.36 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Top View
10.31 mm10.34 mm4.18 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525063977
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

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 28
Current: £10,241 GBP|Low: £3,704 GBP|High: £29,234 GBP|Avg: £13,504 GBP|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Zales
October 29, 2026
Retailer 12£3,704 GBP
Retailer 9£4,547 GBP
Retailer 11£6,553 GBP
Retailer 8£7,337 GBP
Retailer 7£7,868 GBP
Retailer 1£10,241 GBP
Retailer 5£13,332 GBP
Retailer 6£13,795 GBP
Retailer 4£17,589 GBP
Retailer 10£17,617 GBP
Retailer 3£23,441 GBP
Retailer 2£26,898 GBP
Zales£29,234 GBP

24 data points across 13 retailers

19 retailers£3,704 GBP to £23,441 GBP

A
Cheapest Retailer
-
£3,704 GBP
$4,932 USD
A
Retailer 2
-
£3,909 GBP
$5,206 USD
View
A
Retailer 3
-
£4,097 GBP
$5,456 USD
View
A
Retailer 4
-
£4,535 GBP
$6,039 USD
View
A
Retailer 5
-
£4,535 GBP
$6,039 USD
View
Price last confirmed 13 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
-
£7,337 GBP
$9,770 USD
View
B+
Retailer 10
-
£7,868 GBP
€9,979 EUR
View
B+
Retailer 11
-
£10,241 GBP
View
B
Retailer 12
-
£12,510 GBP
$16,660 USD
View
B
Retailer 13
-
£13,332 GBP
$17,754 USD
View
B+
Retailer 14
-
£13,795 GBP
$18,370 USD
View
Price under review
B
Retailer 15
-
£17,589 GBP
$23,423 USD
View
B
Retailer 16
-
£17,617 GBP
$23,460 USD
View
B
Retailer 17
-
£23,441 GBP
$31,216 USD
View
B
Retailer 18
-
£26,898 GBP
$35,820 USD
View
Price under review
Most Expensive
B
Zales
524085684 · Oct 28
£29,234 GBP
$38,930 USD
View
Price under review
18 more retailers have this diamond
Prices start from £3,704 GBPSave up to £19,737 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
£3,704 GBP