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Round|Lab Grown|IGI

3.54ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG685556595

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685556595

Diamond specifications and retailer prices

From £463 GBP
$621 USD
As of October 29, 2026
Save £2,029 GBP (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,493 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.54ct lab-grown round diamond

This 3.54ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG685556595 or 685556595. Listed at 19 retailers as of October 29, 2026, with prices from £463 to £2,493, a £2,029 spread on the same certified stone. Brilliant Earth lists it at £2,493. 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

3.54
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685556595
Dimensions9.82 × 9.86 × 5.96 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
9.82 mm9.86 mm3.54 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685556595
Side View
Table 59.0%Crown 33.8°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.6%

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 29
Current: £2,493 GBP|Low: £371 GBP|High: £2,605 GBP|Avg: £1,307 GBP|-4.3%
Brilliant Earth
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 30, 2026
Retailer 14£463 GBP
Retailer 3£519 GBP
Retailer 11£672 GBP
Retailer 15£808 GBP
Retailer 7£838 GBP
Retailer 5£846 GBP
Retailer 10£853 GBP
Retailer 2£1,214 GBP
Retailer 13£1,247 GBP
Retailer 9£1,248 GBP
Retailer 12£1,504 GBP
Retailer 4£1,814 GBP
Retailer 8£2,278 GBP
Brilliant Earth£2,493 GBP
Retailer 6£2,541 GBP

35 data points across 15 retailers

19 retailers£463 GBP to £2,493 GBP

A
Cheapest Retailer
-
£463 GBP
$621 USD
A
Retailer 2
-
£519 GBP
$696 USD
View
Final sale: no returns
A
Retailer 3
-
£519 GBP
$696 USD
View
Retailer 4
-
£575 GBP
$770 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
£575 GBP
$770 USD
View
A
Retailer 6
-
£672 GBP
$900 USD
View
A
Retailer 7
-
£808 GBP
$1,082 USD
View
A
Retailer 8
-
£838 GBP
$1,123 USD
View
A
Retailer 9
-
£846 GBP
$1,134 USD
View
A
Retailer 10
-
£853 GBP
€1,089 EUR
View
B+
Retailer 11
-
£1,214 GBP
A$2,503 AUD
View
B+
Retailer 12
-
£1,247 GBP
$1,671 USD
View
B+
Retailer 13
-
£1,248 GBP
ZAR 27,024 ZAR
View
Retailer 14
-
£1,504 GBP
$2,015 USD
View
Price last confirmed 9 days ago
B
Retailer 15
-
£1,512 GBP
$2,026 USD
View
B
Retailer 16
-
£1,814 GBP
SGD 3,285 SGD
View
B
Retailer 17
-
£1,857 GBP
$2,488 USD
View
B
Retailer 18
-
£2,278 GBP
View
Most Expensive
B
Brilliant Earth
14082586A · Oct 29
£2,493 GBP
$3,340 USD
View
18 more retailers have this diamond
Prices start from £463 GBPSave up to £2,029 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
3.54ct Round
£463 GBP