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Round|Lab Grown|IGI

2.51ct D VVS1 Round Lab Grown Diamond

EX • D/VVS1 • IGI LG786657424

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786657424

Diamond specifications and retailer prices

From £360 GBP
$480 USD
As of October 29, 2026
Save £1,540 GBP (81%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £4,678 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG786657424 or 786657424. Listed at 25 retailers as of October 29, 2026, with a 427% 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

2.51
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786657424
Dimensions8.79 × 8.83 × 5.30 mm
L/W Ratio1.00
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
8.79 mm8.83 mm2.51 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786657424
Side View
Table 57.0%Crown 31.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.1%

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: £4,678 GBP|Low: £360 GBP|High: £4,678 GBP|Avg: £1,222 GBP
Brilliant Earth
Retailer 2
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Retailer 12
Retailer 13
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Retailer 18
October 30, 2026
Retailer 16£360 GBP
Retailer 17£402 GBP
Retailer 5£559 GBP
Retailer 11£561 GBP
Retailer 7£599 GBP
Retailer 3£652 GBP
Retailer 9£677 GBP
Retailer 12£739 GBP
Retailer 13£991 GBP
Retailer 4£1,093 GBP
Retailer 6£1,217 GBP
Retailer 15£1,305 GBP
Retailer 14£1,457 GBP
Retailer 2£1,566 GBP
Retailer 10£1,694 GBP
Retailer 18£1,901 GBP
Retailer 8£2,489 GBP
Brilliant Earth£4,678 GBP

33 data points across 18 retailers

25 retailers£360 GBP to £1,901 GBP

A
Cheapest Retailer
-
£360 GBP
$480 USD
A
Retailer 2
-
£402 GBP
$536 USD
View
Final sale: no returns
A
Retailer 3
-
£409 GBP
$545 USD
View
Retailer 4
-
£447 GBP
$595 USD
View
Price last confirmed 59 days ago
A
Retailer 5
-
£453 GBP
$603 USD
View
Retailer 6
-
£453 GBP
$603 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
£559 GBP
$745 USD
View
A
Retailer 8
-
£561 GBP
View
A
Retailer 9
-
£599 GBP
$798 USD
View
A
Retailer 10
-
£652 GBP
€827 EUR
View
A
Retailer 11
-
£677 GBP
A$1,388 AUD
View
A
Retailer 12
-
£739 GBP
View
Retailer 13
-
£935 GBP
$1,245 USD
View
Price last confirmed 22 days ago
B+
Retailer 14
-
£991 GBP
A$2,031 AUD
View
B+
Retailer 15
-
£1,034 GBP
$1,377 USD
View
B+
Retailer 16
-
£1,093 GBP
ZAR 23,515 ZAR
View
B+
Retailer 17
-
£1,191 GBP
$1,586 USD
View
B+
Retailer 18
-
£1,217 GBP
$1,621 USD
View
B+
Retailer 19
-
£1,305 GBP
View
B
Retailer 20
-
£1,457 GBP
$1,940 USD
View
B
Retailer 21
-
£1,566 GBP
$2,086 USD
View
B
Retailer 22
-
£1,694 GBP
$2,256 USD
View
B
Retailer 23
-
£1,901 GBP
View
Retailer 24
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£2,489 GBP
$3,315 USD
View
Price last confirmed 22 days ago
Most Expensive
Brilliant Earth
20608598A · Oct 28
£4,678 GBP
$6,230 USD
View
Price under review
24 more retailers have this diamond
Prices start from £360 GBPSave up to £1,540 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
2.51ct Round
£360 GBP