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Round|Lab Grown|IGI

1.28ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG788624811

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788624811

Diamond specifications and retailer prices

From £185 GBP
$248 USD
As of October 30, 2026
Save £1,483 GBP (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,668 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG788624811 or 788624811. Listed at 22 retailers as of October 27, 2026, with prices from £185 to £1,668, a £1,483 spread on the same certified stone. Queensmith lists it at £1,668. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788624811
Dimensions6.96 × 6.98 × 4.27 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
6.96 mm6.98 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788624811
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°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 30
Current: £380 GBP|Low: £131 GBP|High: £941 GBP|Avg: £502 GBP|+6.2%
Retailer 1
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
Retailer 16
October 30, 2026
Retailer 4£185 GBP
Retailer 2£229 GBP
Retailer 16£276 GBP
Retailer 11£352 GBP
Retailer 10£372 GBP
Retailer 1£380 GBP
Retailer 3£387 GBP
Retailer 5£393 GBP
Retailer 12£501 GBP
Retailer 13£533 GBP
Retailer 14£616 GBP
Retailer 6£691 GBP
Retailer 7£698 GBP
Retailer 15£784 GBP
Retailer 9£825 GBP
Retailer 8£941 GBP

41 data points across 16 retailers

22 retailers£185 GBP to £1,668 GBP

Retailer 1
-
£158 GBP
$212 USD
Price last confirmed 29 days ago
A
Retailer 2
-
£185 GBP
$248 USD
View
Final sale: no returns
Retailer 3
-
£192 GBP
$257 USD
View
Price last confirmed 24 days ago
Retailer 4
-
£204 GBP
$274 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
£229 GBP
HK$2,400 HKD
View
B+
Retailer 6
-
£276 GBP
$370 USD
View
A
Retailer 7
-
£352 GBP
ZAR 7,614 ZAR
View
A
Retailer 8
-
£372 GBP
€475 EUR
View
A
Retailer 9
-
£380 GBP
View
B+
Retailer 10
-
£387 GBP
$519 USD
View
B+
Retailer 11
-
£393 GBP
$526 USD
View
B+
Retailer 12
-
£501 GBP
A$1,032 AUD
View
B+
Retailer 13
-
£533 GBP
$714 USD
View
Retailer 14
-
£616 GBP
$825 USD
View
Price last confirmed 16 days ago
Retailer 15
-
£658 GBP
$882 USD
View
Price last confirmed 30 days ago
B
Retailer 16
-
£664 GBP
SGD 1,202 SGD
View
B
Retailer 17
-
£698 GBP
$935 USD
View
B
Retailer 18
-
£705 GBP
$945 USD
View
Retailer 19
-
£784 GBP
$1,050 USD
View
Price last confirmed 14 days ago
B+
Retailer 20
-
£825 GBP
View
B
Retailer 21
-
£941 GBP
$1,261 USD
View
Most Expensive
B
Queensmith
LG788624811 · Oct 27
£1,668 GBP
View
21 more retailers have this diamond
Prices start from £185 GBPSave up to £1,483 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
1.28ct Round
£185 GBP