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Round|Lab Grown|IGI

1.51ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG837628424

Certificate IGI LG837628424

Diamond specifications and retailer prices

From £375 GBP
$502 USD
As of October 29, 2026
Save £2,215 GBP (86%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,590 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG837628424 or 837628424. Listed at 24 retailers as of October 29, 2026, with prices from £375 to £2,590, a £2,215 spread on the same certified stone. Brilliant Earth lists it at £2,590. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG837628424
Dimensions7.37 × 7.41 × 4.53 mm
L/W Ratio1.01
Top View
7.37 mm7.41 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837628424
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,590 GBP|Low: £360 GBP|High: £3,620 GBP|Avg: £1,098 GBP|-28.5%
Brilliant Earth
Retailer 2
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Retailer 24
November 1, 2026
Retailer 3£375 GBP
Retailer 4£419 GBP
Retailer 8£465 GBP
Retailer 23£465 GBP
Retailer 9£479 GBP
Retailer 2£595 GBP
Retailer 14£627 GBP
Retailer 18£677 GBP
Retailer 22£721 GBP
Retailer 21£724 GBP
Retailer 11£743 GBP
Retailer 7£764 GBP
Retailer 13£771 GBP
Retailer 20£799 GBP
Retailer 12£1,031 GBP
Retailer 10£1,222 GBP
Retailer 24£1,446 GBP
Retailer 6£1,513 GBP
Retailer 17£1,562 GBP
Retailer 5£1,610 GBP
Retailer 19£1,950 GBP
Retailer 15£2,031 GBP
Retailer 16£2,167 GBP
Brilliant Earth£2,590 GBP

32 data points across 24 retailers

24 retailers£375 GBP to £2,590 GBP

A
Cheapest Retailer
-
£375 GBP
$502 USD
A
Retailer 2
-
£419 GBP
$562 USD
View
Retailer 3
-
£465 GBP
$623 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
£465 GBP
$623 USD
View
A
Retailer 5
-
£479 GBP
$642 USD
View
Final sale: no returns
A
Retailer 6
-
£595 GBP
View
A
Retailer 7
-
£627 GBP
$840 USD
View
A
Retailer 8
-
£677 GBP
€864 EUR
View
B+
Retailer 9
-
£721 GBP
$966 USD
View
B+
Retailer 10
-
£724 GBP
$970 USD
View
B+
Retailer 11
-
£743 GBP
$995 USD
View
B+
Retailer 12
-
£764 GBP
$1,024 USD
View
B+
Retailer 13
-
£771 GBP
View
B+
Retailer 14
-
£799 GBP
ZAR 17,286 ZAR
View
B+
Retailer 15
-
£1,031 GBP
$1,382 USD
View
B+
Retailer 16
-
£1,222 GBP
$1,638 USD
View
B+
Retailer 17
-
£1,446 GBP
$1,938 USD
View
B
Retailer 18
-
£1,513 GBP
$2,027 USD
View
B
Retailer 19
-
£1,562 GBP
CA$2,906 CAD
View
B
Retailer 20
-
£1,610 GBP
$2,158 USD
View
B
Retailer 21
-
£1,950 GBP
View
B
Retailer 22
-
£2,031 GBP
$2,721 USD
View
B
Retailer 23
-
£2,167 GBP
$2,903 USD
View
Most Expensive
B
Brilliant Earth
21790186A · Oct 31
£2,590 GBP
$3,470 USD
View
23 more retailers have this diamond
Prices start from £375 GBPSave up to £2,215 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
1.51ct Round
£375 GBP