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Round|Lab Grown|IGI

2.85ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG620403873

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620403873

Diamond specifications and retailer prices

From £276 GBP
$368 USD
As of October 28, 2026
Save £990 GBP (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,288 GBP at Rare Carat · As of October 7, 2026
View at Rare Carat

About this 2.85ct lab-grown round diamond

This 2.85ct lab-grown round sits in the two to three carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620403873 or 620403873. Listed at 8 retailers as of October 28, 2026, with a 358% 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

2.85
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620403873
Dimensions9.09 × 9.05 × 5.61 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.09 mm9.05 mm2.85 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620403873
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

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: £1,288 GBP|Low: £191 GBP|High: £3,019 GBP|Avg: £1,008 GBP|-0.9%
Rare Carat
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
October 27, 2026
Retailer 9£276 GBP
Retailer 8£396 GBP
Retailer 10£499 GBP
Retailer 11£512 GBP
Retailer 13£560 GBP
Retailer 6£590 GBP
Retailer 3£769 GBP
Retailer 12£800 GBP
Retailer 2£842 GBP
Retailer 7£958 GBP
Retailer 14£1,175 GBP
Retailer 4£1,267 GBP
Rare Carat£1,288 GBP
Retailer 15£2,133 GBP
Retailer 5£3,019 GBP

16 data points across 15 retailers

8 retailers£276 GBP to £1,267 GBP

A
Cheapest Retailer
-
£276 GBP
$368 USD
Final sale: no returns
B+
Retailer 2
-
£396 GBP
$528 USD
View
Retailer 3
-
£769 GBP
ZAR 16,549 ZAR
View
Price last confirmed 65 days ago
Retailer 4
-
£800 GBP
$1,066 USD
View
Price last confirmed 43 days ago
A
Retailer 5
-
£842 GBP
$1,122 USD
View
B+
Retailer 6
-
£958 GBP
CA$1,771 CAD
View
B+
Retailer 7
-
£1,267 GBP
$1,687 USD
View
Most Expensive
Rare Carat
620403873 · Oct 7
£1,288 GBP
$1,715 USD
View
Price last confirmed 22 days ago
7 more retailers have this diamond
Prices start from £276 GBPSave up to £990 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
2.85ct Round
£276 GBP