Round|Lab Grown|GIA

5.23ct D FL Round Lab Grown Diamond

EX • D/FL • GIA 2518429378

Certificate GIA 2518429378

Diamond specifications and retailer prices

From £20,164 GBP
$27,018 USD
As of October 31, 2026
Save £15,409 GBP (43%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £35,573 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 5.23ct lab-grown round diamond

This 5.23ct lab-grown round sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2518429378. Listed at 10 retailers as of October 29, 2026, with prices from £20,164 to £35,573, a £15,409 spread on the same certified stone. MOH London lists it at £35,573. 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

5.23
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabGIA
CertificateGIA 2518429378
Dimensions11.14 × 11.07 × 6.87 mm
L/W Ratio1.01
Culet sizeNone
Top View
11.14 mm11.07 mm5.23 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2518429378
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £35,573 GBP|Low: £12,960 GBP|High: £77,285 GBP|Avg: £34,993 GBP|-6.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 3£12,960 GBP
Retailer 10£20,164 GBP
Retailer 7£20,280 GBP
Retailer 6£23,948 GBP
Retailer 2£27,955 GBP
Retailer 5£28,271 GBP
Retailer 9£31,240 GBP
MOH London£35,573 GBP
Retailer 4£47,005 GBP
Retailer 8£58,987 GBP
Retailer 11£77,285 GBP

29 data points across 11 retailers

10 retailers£20,164 GBP to £35,573 GBP

B+
Cheapest Retailer
-
£20,164 GBP
$27,018 USD
B+
Retailer 2
-
£20,280 GBP
$27,173 USD
View
B+
Retailer 3
-
£23,948 GBP
$32,088 USD
View
B+
Retailer 4
-
£27,955 GBP
View
B+
Retailer 5
-
£28,271 GBP
$37,880 USD
View
B+
Retailer 6
-
£31,240 GBP
$41,858 USD
View
Most Expensive
B
MOH London
2518429378 · Oct 29
£35,573 GBP
View
6 more retailers have this diamond
Prices start from £20,164 GBPSave up to £15,409 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.

B+
5.23ct Round
£20,164 GBP