CaratHunter
Plans
Round|Lab Grown|IGI

3.50ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG831616987

Shape and cutting style on the report: Round brilliant

Certificate IGI LG831616987

Diamond specifications and retailer prices

From £565 GBP
$753 USD
As of October 27, 2026
Save £1,906 GBP (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £6,818 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 3.5ct lab-grown round diamond

This 3.5ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831616987 or 831616987. Listed at 20 retailers as of October 26, 2026, with a 337% 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

3.50
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831616987
Dimensions9.66 × 9.71 × 6.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.66 mm9.71 mm3.50 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831616987
Side View
Table 56.0%Crown 35.6°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.5%

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 27
Current: £6,818 GBP|Low: £547 GBP|High: £7,029 GBP|Avg: £1,932 GBP|-3.0%
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
Retailer 16
October 27, 2026
Retailer 5£565 GBP
Retailer 16£806 GBP
Retailer 9£929 GBP
Retailer 10£946 GBP
Retailer 6£954 GBP
Retailer 2£1,020 GBP
Retailer 13£1,331 GBP
Retailer 12£1,348 GBP
Retailer 3£1,353 GBP
Retailer 14£1,497 GBP
Retailer 8£1,998 GBP
Retailer 4£2,021 GBP
Retailer 7£2,029 GBP
Retailer 11£2,471 GBP
Retailer 15£2,906 GBP
Brilliant Earth£6,818 GBP

38 data points across 16 retailers

20 retailers£565 GBP to £2,471 GBP

A
Retailer 1
-
£489 GBP
$651 USD
Price last confirmed 37 days ago
A
Retailer 2
-
£532 GBP
$709 USD
View
Price last confirmed 36 days ago
A
Retailer 3
-
£559 GBP
$745 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
£565 GBP
$753 USD
View
Final sale: no returns
A
Retailer 5
-
£806 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£929 GBP
View
A
Retailer 7
-
£946 GBP
$1,260 USD
View
A
Retailer 8
-
£954 GBP
$1,271 USD
View
A
Retailer 9
-
£1,020 GBP
€1,294 EUR
View
B+
Retailer 10
-
£1,331 GBP
A$2,726 AUD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£1,348 GBP
ZAR 28,990 ZAR
View
B+
Retailer 12
-
£1,353 GBP
$1,802 USD
View
B+
Retailer 13
-
£1,497 GBP
$1,993 USD
View
B+
Retailer 14
-
£1,595 GBP
$2,124 USD
View
Price last confirmed 32 days ago
B
Retailer 15
-
£1,998 GBP
$2,661 USD
View
B
Retailer 16
-
£2,021 GBP
$2,691 USD
View
B
Retailer 17
-
£2,029 GBP
$2,701 USD
View
B
Retailer 18
-
£2,471 GBP
View
B
Retailer 19
-
£2,906 GBP
$3,870 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21300317A · Oct 26
£6,818 GBP
$9,080 USD
View
Price under review
19 more retailers have this diamond
Prices start from £565 GBPSave up to £1,906 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
3.50ct Round
£565 GBP