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Round|Lab Grown|IGI

1.20ct D VVS2 Round Lab Grown Diamond

ID • D/VVS2 • IGI LG778645573

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645573

Diamond specifications and retailer prices

From £143 GBP
$191 USD
As of October 29, 2026
Save £1,497 GBP (91%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,640 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG778645573 or 778645573. Listed at 23 retailers as of October 27, 2026, with prices from £143 to £1,640, a £1,497 spread on the same certified stone. Queensmith lists it at £1,640. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645573
Dimensions6.80 × 6.84 × 4.19 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
6.80 mm6.84 mm1.20 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645573
Side View
Table 57.0%Crown 34.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.3%

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: £322 GBP|Low: £137 GBP|High: £842 GBP|Avg: £349 GBP|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 11£143 GBP
Retailer 4£160 GBP
Retailer 3£178 GBP
Retailer 2£240 GBP
Retailer 6£294 GBP
Retailer 8£306 GBP
Retailer 1£322 GBP
Retailer 7£328 GBP
Retailer 9£434 GBP
Retailer 10£455 GBP
Retailer 5£836 GBP

35 data points across 11 retailers

23 retailers£143 GBP to £1,640 GBP

A
Cheapest Retailer
-
£143 GBP
$191 USD
A
Retailer 2
-
£160 GBP
$213 USD
View
Final sale: no returns
A
Retailer 3
-
£167 GBP
$222 USD
View
A
Retailer 4
-
£178 GBP
$237 USD
View
A
Retailer 5
-
£178 GBP
$237 USD
View
A
Retailer 6
-
£202 GBP
HK$2,100 HKD
View
B+
Retailer 7
-
£240 GBP
$320 USD
View
A
Retailer 8
-
£294 GBP
View
A
Retailer 9
-
£306 GBP
ZAR 6,573 ZAR
View
A
Retailer 10
-
£311 GBP
$414 USD
View
A
Retailer 11
-
£322 GBP
View
B+
Retailer 12
-
£328 GBP
€416 EUR
View
B+
Retailer 13
-
£362 GBP
$482 USD
View
B+
Retailer 14
-
£434 GBP
A$889 AUD
View
B+
Retailer 15
-
£455 GBP
$606 USD
View
B
Retailer 16
-
£572 GBP
$762 USD
View
B
Retailer 17
-
£574 GBP
$764 USD
View
Price last confirmed 13 days ago
B
Retailer 18
-
£581 GBP
SGD 1,045 SGD
View
B
Retailer 19
-
£598 GBP
$797 USD
View
B
Retailer 20
-
£612 GBP
$815 USD
View
B
Retailer 21
-
£836 GBP
View
B
Retailer 22
-
£875 GBP
$1,165 USD
View
Most Expensive
B
Queensmith
LG778645573 · Oct 27
£1,640 GBP
View
22 more retailers have this diamond
Prices start from £143 GBPSave up to £1,497 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
1.20ct Round
£143 GBP