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Round|Lab Grown|IGI

3.12ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG805678310

Shape and cutting style on the report: Round brilliant

Certificate IGI LG805678310

Diamond specifications and retailer prices

From £749 GBP
$1,003 USD
As of October 29, 2026
Save £2,278 GBP (75%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,220 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

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 LG805678310 or 805678310. Listed at 23 retailers as of October 29, 2026, with a 304% 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 angle35.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805678310
Dimensions9.31 × 9.34 × 5.80 mm
L/W Ratio1.00
Girdle conditionFaceted
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
9.31 mm9.34 mm3.12 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805678310
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.2%

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: £3,220 GBP|Low: £814 GBP|High: £3,254 GBP|Avg: £1,807 GBP|-1.0%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 4£814 GBP
Retailer 5£838 GBP
Retailer 9£1,000 GBP
Retailer 3£1,068 GBP
Retailer 2£1,246 GBP
Retailer 10£1,300 GBP
Retailer 8£1,452 GBP
Retailer 11£1,959 GBP
Retailer 6£2,016 GBP
Retailer 12£2,687 GBP
Retailer 13£2,913 GBP
Retailer 7£2,960 GBP
Rare Carat£3,220 GBP

43 data points across 13 retailers

23 retailers£749 GBP to £3,027 GBP

A
Cheapest Retailer
-
£749 GBP
$1,003 USD
A
Retailer 2
-
£814 GBP
$1,091 USD
View
A
Retailer 3
-
£838 GBP
$1,123 USD
View
Final sale: no returns
A
Retailer 4
-
£868 GBP
$1,163 USD
View
Retailer 5
-
£868 GBP
$1,163 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£1,000 GBP
$1,340 USD
View
A
Retailer 7
-
£1,003 GBP
HK$10,500 HKD
View
A
Retailer 8
-
£1,068 GBP
$1,431 USD
View
B+
Retailer 9
-
£1,246 GBP
View
B+
Retailer 10
-
£1,300 GBP
$1,742 USD
View
B+
Retailer 11
-
£1,452 GBP
€1,853 EUR
View
B+
Retailer 12
-
£1,621 GBP
$2,172 USD
View
B+
Retailer 13
-
£1,627 GBP
$2,180 USD
View
B+
Retailer 14
-
£1,814 GBP
$2,431 USD
View
Retailer 15
-
£1,959 GBP
A$4,038 AUD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
£2,016 GBP
ZAR 43,635 ZAR
View
B
Retailer 17
-
£2,687 GBP
$3,600 USD
View
B
Retailer 18
-
£2,692 GBP
$3,607 USD
View
B
Retailer 19
-
£2,803 GBP
$3,755 USD
View
B
Retailer 20
-
£2,913 GBP
SGD 5,274 SGD
View
B
Retailer 21
-
£2,960 GBP
View
B
Retailer 22
-
£3,027 GBP
$4,055 USD
View
Most Expensive
Rare Carat
273-3231A · Oct 18
£3,220 GBP
$4,315 USD
View
Price last confirmed 12 days ago
22 more retailers have this diamond
Prices start from £749 GBPSave up to £2,278 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
£749 GBP