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Round|Lab Grown|IGI

3.40ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG696559946

Shape and cutting style on the report: Round brilliant

Certificate IGI LG696559946

Diamond specifications and retailer prices

From £718 GBP
$956 USD
As of October 29, 2026
Save £2,086 GBP (74%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £8,658 GBP at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 3.4ct lab-grown round diamond

This 3.4ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG696559946 or 696559946. Listed at 27 retailers as of October 29, 2026, with a 291% 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

3.40
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG696559946
Dimensions9.55 × 9.64 × 5.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.55 mm9.64 mm3.40 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG696559946
Side View
Table 58.0%Crown 35.1°Girdle: MediumPavilion 41.3°Culet: NoneDepth 62.4%

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 29
Current: £8,658 GBP|Low: £718 GBP|High: £8,658 GBP|Avg: £2,030 GBP
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 29, 2026
Retailer 3£718 GBP
Retailer 14£865 GBP
Retailer 12£875 GBP
Retailer 7£974 GBP
Retailer 2£1,140 GBP
Retailer 11£1,187 GBP
Retailer 15£1,522 GBP
Retailer 13£1,610 GBP
Retailer 16£1,679 GBP
Retailer 9£1,728 GBP
Retailer 4£2,203 GBP
Retailer 6£2,498 GBP
Retailer 8£2,580 GBP
Retailer 10£2,804 GBP
Retailer 5£3,017 GBP
Brilliant Earth£8,658 GBP

39 data points across 16 retailers

27 retailers£718 GBP to £2,804 GBP

Retailer 1
-
£641 GBP
$854 USD
Price last confirmed 11 days ago
Retailer 2
-
£698 GBP
$929 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£718 GBP
$956 USD
View
Final sale: no returns
Retailer 4
-
£744 GBP
$991 USD
View
Price last confirmed 10 days ago
Retailer 5
-
£744 GBP
$991 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
£865 GBP
HK$9,000 HKD
View
A
Retailer 7
-
£875 GBP
$1,165 USD
View
A
Retailer 8
-
£974 GBP
$1,297 USD
View
A
Retailer 9
-
£1,065 GBP
$1,418 USD
View
A
Retailer 10
-
£1,140 GBP
View
A
Retailer 11
-
£1,187 GBP
€1,505 EUR
View
Retailer 12
-
£1,522 GBP
$2,027 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£1,559 GBP
$2,076 USD
View
B+
Retailer 14
-
£1,610 GBP
A$3,298 AUD
View
Retailer 15
-
£1,679 GBP
A$3,440 AUD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
£1,728 GBP
ZAR 37,169 ZAR
View
B+
Retailer 17
-
£1,850 GBP
$2,463 USD
View
Retailer 18
-
£2,092 GBP
$2,786 USD
View
Price last confirmed 11 days ago
B+
Retailer 19
-
£2,203 GBP
$2,934 USD
View
B+
Retailer 20
-
£2,329 GBP
$3,101 USD
View
B
Retailer 21
-
£2,464 GBP
$3,281 USD
View
B
Retailer 22
-
£2,498 GBP
SGD 4,495 SGD
View
B
Retailer 23
-
£2,580 GBP
$3,436 USD
View
B+
Retailer 24
-
£2,804 GBP
View
Retailer 25
-
£3,017 GBP
A$6,182 AUD
View
Price last confirmed 27 days ago
Retailer 26
-
£4,292 GBP
$5,716 USD
View
Price last confirmed 87 days ago
Most Expensive
Brilliant Earth
14523506A · Oct 18
£8,658 GBP
$11,530 USD
View
Price under review
26 more retailers have this diamond
Prices start from £718 GBPSave up to £2,086 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
3.40ct Round
£718 GBP