Round|Lab Grown|GIA

4.23ct I VVS2 Round Lab Grown Diamond

EX • I/VVS2 • GIA 2438571663

Certificate GIA 2438571663

Diamond specifications and retailer prices

From £1,249 GBP
$1,673 USD
As of October 30, 2026
Save £3,603 GBP (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,916 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.23ct lab-grown round diamond

This 4.23ct lab-grown round sits in the three to five carat band, graded I colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by GIA 2438571663. Listed at 16 retailers as of October 29, 2026, with a 289% 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

4.23
Carat
I
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2438571663
Dimensions10.51 × 10.45 × 6.32 mm
L/W Ratio1.01
Top View
10.51 mm10.45 mm4.23 ctI / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2438571663
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth 60.0%

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 30
Current: £4,852 GBP|Low: £1,058 GBP|High: £9,083 GBP|Avg: £2,964 GBP|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
October 29, 2026
Retailer 5£1,160 GBP
Retailer 3£1,249 GBP
Retailer 9£1,320 GBP
Retailer 11£1,478 GBP
Retailer 4£1,539 GBP
Retailer 8£1,657 GBP
Retailer 12£1,761 GBP
Retailer 10£2,402 GBP
Retailer 6£2,429 GBP
Retailer 7£2,575 GBP
Retailer 13£3,207 GBP
Retailer 1£4,852 GBP
Taylor and Hart£5,916 GBP
Retailer 2£9,083 GBP

17 data points across 14 retailers

16 retailers£1,249 GBP to £4,852 GBP

B+
Cheapest Retailer
-
£1,249 GBP
$1,673 USD
B+
Retailer 2
-
£1,320 GBP
$1,768 USD
View
B+
Retailer 3
-
£1,436 GBP
$1,924 USD
View
B+
Retailer 4
-
£1,478 GBP
$1,981 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,531 GBP
$2,051 USD
View
Retailer 6
-
£1,531 GBP
$2,051 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
£1,657 GBP
$2,220 USD
View
B+
Retailer 8
-
£1,761 GBP
$2,360 USD
View
B
Retailer 9
-
£2,323 GBP
$3,112 USD
View
B
Retailer 10
-
£2,402 GBP
$3,219 USD
View
Retailer 11
-
£2,429 GBP
$3,255 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
£2,575 GBP
$3,450 USD
View
B
Retailer 13
-
£3,207 GBP
View
B
Retailer 14
-
£4,852 GBP
View
Most Expensive
Taylor and Hart
8YUS02F · Oct 30
£5,916 GBP
$7,927 USD
View
Price under review
14 more retailers have this diamond
Prices start from £1,249 GBPSave up to £3,603 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+
4.23ct Round
£1,249 GBP