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Round|Lab Grown|IGI

3.12ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG659434541

Shape and cutting style on the report: Round brilliant

Certificate IGI LG659434541

Diamond specifications and retailer prices

From £613 GBP
$816 USD
As of October 29, 2026
Save £4,610 GBP (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £7,907 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.12ct lab-grown round diamond

This 3.12ct 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 LG659434541 or 659434541. Listed at 24 retailers as of October 29, 2026, with a 752% 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

3.12
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659434541
Dimensions9.32 × 9.36 × 5.79 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
9.32 mm9.36 mm3.12 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659434541
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.9%

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: £7,907 GBP|Low: £613 GBP|High: £7,907 GBP|Avg: £2,199 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
October 29, 2026
Retailer 6£613 GBP
Retailer 5£919 GBP
Retailer 4£1,030 GBP
Retailer 10£1,033 GBP
Retailer 2£1,069 GBP
Retailer 15£1,565 GBP
Retailer 13£1,582 GBP
Retailer 9£1,628 GBP
Retailer 7£1,944 GBP
Retailer 3£2,147 GBP
Retailer 8£2,643 GBP
Retailer 11£3,012 GBP
Retailer 14£3,146 GBP
Retailer 12£5,223 GBP
Brilliant Earth£7,907 GBP

40 data points across 15 retailers

24 retailers£613 GBP to £5,223 GBP

A
Retailer 1
-
£547 GBP
$729 USD
Price last confirmed 19 days ago
A
Retailer 2
-
£595 GBP
$793 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£613 GBP
$816 USD
View
Final sale: no returns
A
Retailer 4
-
£635 GBP
$846 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
£635 GBP
$846 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£919 GBP
$1,224 USD
View
A
Retailer 7
-
£1,030 GBP
$1,371 USD
View
A
Retailer 8
-
£1,033 GBP
$1,375 USD
View
A
Retailer 9
-
£1,069 GBP
View
B+
Retailer 10
-
£1,214 GBP
$1,617 USD
View
B+
Retailer 11
-
£1,565 GBP
$2,084 USD
View
B+
Retailer 12
-
£1,582 GBP
A$3,242 AUD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£1,628 GBP
ZAR 35,028 ZAR
View
B+
Retailer 14
-
£1,944 GBP
$2,589 USD
View
B+
Retailer 15
-
£1,971 GBP
$2,625 USD
View
Price last confirmed 22 days ago
B
Retailer 16
-
£2,147 GBP
$2,859 USD
View
B
Retailer 17
-
£2,147 GBP
$2,859 USD
View
B
Retailer 18
-
£2,505 GBP
$3,336 USD
View
B+
Retailer 19
-
£2,643 GBP
View
B
Retailer 20
-
£3,012 GBP
$4,011 USD
View
B
Retailer 21
-
£3,146 GBP
$4,190 USD
View
Price last confirmed 11 days ago
B
Retailer 22
-
£4,866 GBP
$6,480 USD
View
B
Retailer 23
-
£5,223 GBP
$6,956 USD
View
Most Expensive
B
Brilliant Earth
18396268Y · Oct 29
£7,907 GBP
$10,530 USD
View
Price under review
23 more retailers have this diamond
Prices start from £613 GBPSave up to £4,610 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
3.12ct Round
£613 GBP