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Round|Lab Grown|IGI

2.56ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG830633381

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830633381

Diamond specifications and retailer prices

From £273 GBP
$366 USD
As of November 1, 2026
Save £2,175 GBP (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,448 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.56ct lab-grown round diamond

This 2.56ct lab-grown round sits in the two to three carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG830633381 or 830633381. Listed at 21 retailers as of October 31, 2026, with prices from £273 to £2,448, a £2,175 spread on the same certified stone. Brilliant Earth lists it at £2,448. 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

2.56
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830633381
Dimensions8.94 × 8.89 × 5.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.94 mm8.89 mm2.56 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830633381
Side View
Table 60.0%Crown 32.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £2,448 GBP|Low: £260 GBP|High: £2,448 GBP|Avg: £919 GBP
Brilliant Earth
Retailer 2
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November 1, 2026
Retailer 19£273 GBP
Retailer 17£316 GBP
Retailer 11£339 GBP
Retailer 4£401 GBP
Retailer 20£452 GBP
Retailer 8£478 GBP
Retailer 15£555 GBP
Retailer 13£609 GBP
Retailer 3£749 GBP
Retailer 6£816 GBP
Retailer 16£837 GBP
Retailer 5£856 GBP
Retailer 10£1,088 GBP
Retailer 7£1,118 GBP
Retailer 9£1,150 GBP
Retailer 14£1,265 GBP
Retailer 12£1,318 GBP
Retailer 18£1,553 GBP
Retailer 2£1,825 GBP
Brilliant Earth£2,448 GBP

34 data points across 20 retailers

21 retailers£273 GBP to £2,448 GBP

A
Cheapest Retailer
-
£273 GBP
$366 USD
A
Retailer 2
-
£316 GBP
$424 USD
View
Retailer 3
-
£337 GBP
$451 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£339 GBP
$454 USD
View
A
Retailer 5
-
£401 GBP
HK$4,200 HKD
View
A
Retailer 6
-
£452 GBP
$605 USD
View
B+
Retailer 7
-
£478 GBP
$640 USD
View
A
Retailer 8
-
£555 GBP
€708 EUR
View
A
Retailer 9
-
£609 GBP
View
B+
Retailer 10
-
£749 GBP
A$1,544 AUD
View
B+
Retailer 11
-
£816 GBP
ZAR 17,671 ZAR
View
B+
Retailer 12
-
£837 GBP
$1,122 USD
View
B+
Retailer 13
-
£856 GBP
$1,147 USD
View
B+
Retailer 14
-
£1,088 GBP
$1,458 USD
View
B+
Retailer 15
-
£1,118 GBP
$1,498 USD
View
B
Retailer 16
-
£1,150 GBP
SGD 2,082 SGD
View
B
Retailer 17
-
£1,265 GBP
$1,695 USD
View
B
Retailer 18
-
£1,318 GBP
View
B
Retailer 19
-
£1,553 GBP
$2,081 USD
View
B
Retailer 20
-
£1,825 GBP
$2,445 USD
View
Most Expensive
B
Brilliant Earth
21327682A · Oct 31
£2,448 GBP
$3,280 USD
View
20 more retailers have this diamond
Prices start from £273 GBPSave up to £2,175 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
2.56ct Round
£273 GBP