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Cushion|Lab Grown|IGI

3.10ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG783655828

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG783655828

Diamond specifications and retailer prices

From £657 GBP
$880 USD
As of October 30, 2026
Save £3,896 GBP (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,553 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion 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 LG783655828 or 783655828. Listed at 18 retailers as of October 30, 2026, with prices from £657 to £4,553, a £3,896 spread on the same certified stone. Do Amore Diamonds lists it at £4,553. 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

3.10
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.2°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783655828
Dimensions10.45 × 7.70 × 5.20 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.45 mm7.70 mm3.10 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783655828
Side View
Table 61.0%Crown 30.2°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 67.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £4,553 GBP|Low: £349 GBP|High: £5,284 GBP|Avg: £1,637 GBP|+42.2%
Do Amore Diamonds
Retailer 2
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October 31, 2026
Retailer 11£349 GBP
Retailer 7£595 GBP
Retailer 8£657 GBP
Retailer 13£675 GBP
Retailer 15£789 GBP
Retailer 17£877 GBP
Retailer 18£878 GBP
Retailer 20£881 GBP
Retailer 2£1,005 GBP
Retailer 22£1,072 GBP
Retailer 10£1,089 GBP
Retailer 4£1,433 GBP
Retailer 16£1,482 GBP
Retailer 12£1,633 GBP
Retailer 19£2,027 GBP
Retailer 3£2,063 GBP
Retailer 5£2,110 GBP
Retailer 6£2,250 GBP
Retailer 21£2,347 GBP
Retailer 9£3,190 GBP
Do Amore Diamonds£4,553 GBP
Retailer 14£5,284 GBP

27 data points across 22 retailers

18 retailers£657 GBP to £4,553 GBP

Retailer 1
-
£595 GBP
$797 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
£657 GBP
$880 USD
View
A
Retailer 3
-
£675 GBP
$905 USD
View
A
Retailer 4
-
£877 GBP
$1,175 USD
View
A
Retailer 5
-
£878 GBP
$1,176 USD
View
A
Retailer 6
-
£881 GBP
View
B+
Retailer 7
-
£1,005 GBP
View
A
Retailer 8
-
£1,072 GBP
ZAR 23,205 ZAR
View
A
Retailer 9
-
£1,089 GBP
$1,459 USD
View
B+
Retailer 10
-
£1,433 GBP
View
B+
Retailer 11
-
£1,482 GBP
A$3,055 AUD
View
B
Retailer 12
-
£2,027 GBP
$2,716 USD
View
B
Retailer 13
-
£2,063 GBP
View
B
Retailer 14
-
£2,110 GBP
$2,827 USD
View
Retailer 15
-
£2,250 GBP
$3,015 USD
View
Price last confirmed 13 days ago
B
Retailer 16
-
£2,347 GBP
$3,144 USD
View
B
Retailer 17
-
£3,190 GBP
$4,274 USD
View
Most Expensive
B
Do Amore Diamonds
27-21171BFA2 · Oct 31
£4,553 GBP
$6,100 USD
View
17 more retailers have this diamond
Prices start from £657 GBPSave up to £3,896 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
3.10ct Cushion
£657 GBP