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Round|Lab Grown|IGI

28.03ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG720513814

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720513814

Diamond specifications and retailer prices

From £13,611 GBP
As of October 30, 2026
Save £28,970 GBP (68%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £42,580 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 28.03ct lab-grown round diamond

This 28.03ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG720513814 or 720513814. Listed at 16 retailers as of October 30, 2026, with prices from £13,611 to £42,580, a £28,970 spread on the same certified stone. Taylor and Hart lists it at £42,580. 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

28.03
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720513814
Dimensions19.52 × 19.44 × 12.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.52 mm19.44 mm28.03 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720513814
Side View
Table 57.0%Crown 34.1°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.6%

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: £13,611 GBP|Low: £13,565 GBP|High: £71,638 GBP|Avg: £26,817 GBP|-47.6%
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
Retailer 14
Retailer 15
Taylor and Hart
October 30, 2026
Retailer 1£13,611 GBP
Retailer 3£14,251 GBP
Retailer 12£15,730 GBP
Retailer 4£15,810 GBP
Retailer 5£15,856 GBP
Retailer 11£17,978 GBP
Retailer 14£18,033 GBP
Retailer 2£18,247 GBP
Retailer 6£18,247 GBP
Retailer 8£18,907 GBP
Retailer 7£26,183 GBP
Retailer 9£30,912 GBP
Retailer 10£34,202 GBP
Retailer 13£38,965 GBP
Retailer 15£42,556 GBP
Taylor and Hart£42,580 GBP

32 data points across 16 retailers

16 retailers£13,611 GBP to £42,580 GBP

B+
Cheapest Retailer
-
£13,611 GBP
B+
Retailer 2
-
£14,251 GBP
$19,095 USD
View
B+
Retailer 3
-
£15,730 GBP
$21,077 USD
View
B+
Retailer 4
-
£15,810 GBP
$21,183 USD
View
B+
Retailer 5
-
£15,856 GBP
$21,245 USD
View
B
Retailer 6
-
£17,978 GBP
$24,088 USD
View
B+
Retailer 7
-
£18,033 GBP
$24,162 USD
View
Retailer 8
-
£18,247 GBP
$24,449 USD
View
Price last confirmed 18 days ago
B
Retailer 9
-
£18,247 GBP
$24,449 USD
View
B
Retailer 10
-
£18,907 GBP
View
Retailer 11
-
£26,183 GBP
$35,082 USD
View
Price last confirmed 72 days ago
B
Retailer 12
-
£30,912 GBP
€39,446 EUR
View
Retailer 13
-
£34,202 GBP
A$70,502 AUD
View
Price last confirmed 8 days ago
B
Retailer 14
-
£38,965 GBP
$52,209 USD
View
B
Retailer 15
-
£42,556 GBP
$57,020 USD
View
Most Expensive
B
Taylor and Hart
MCAQ3DH · Oct 30
£42,580 GBP
$57,053 USD
View
15 more retailers have this diamond
Prices start from £13,611 GBPSave up to £28,970 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+
28.03ct Round
£13,611 GBP