Round|Lab Grown|IGI

1.28ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG784690535

Shape and cutting style on the report: Round brilliant

Certificate IGI LG784690535

Diamond specifications and retailer prices

From £148 GBP
$198 USD
As of October 29, 2026
Save £738 GBP (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,014 GBP at Novita Diamonds · As of June 9, 2026
View at Novita Diamonds

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 LG784690535 or 784690535. Listed at 23 retailers as of October 29, 2026, with a 500% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle33.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784690535
Dimensions6.97 × 6.99 × 4.26 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
6.97 mm6.99 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784690535
Side View
Table 57.0%Crown 33.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.0%

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: £335 GBP|Low: £142 GBP|High: £886 GBP|Avg: £417 GBP|+5.3%
Retailer 1
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Retailer 21
October 30, 2026
Retailer 6£148 GBP
Retailer 16£165 GBP
Retailer 19£172 GBP
Retailer 3£184 GBP
Retailer 4£184 GBP
Retailer 21£292 GBP
Retailer 12£309 GBP
Retailer 17£315 GBP
Retailer 11£318 GBP
Retailer 1£335 GBP
Retailer 8£368 GBP
Retailer 9£387 GBP
Retailer 18£448 GBP
Retailer 5£487 GBP
Retailer 7£590 GBP
Retailer 20£601 GBP
Retailer 14£608 GBP
Retailer 13£629 GBP
Retailer 2£784 GBP
Retailer 15£862 GBP
Retailer 10£886 GBP

29 data points across 21 retailers

23 retailers£148 GBP to £886 GBP

A
Cheapest Retailer
-
£148 GBP
$198 USD
A
Retailer 2
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£165 GBP
$221 USD
View
Final sale: no returns
A
Retailer 3
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£172 GBP
$230 USD
View
A
Retailer 4
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£184 GBP
$246 USD
View
A
Retailer 5
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£184 GBP
$246 USD
View
Retailer 6
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£292 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
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£309 GBP
€394 EUR
View
A
Retailer 8
-
£315 GBP
ZAR 6,813 ZAR
View
A
Retailer 9
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£318 GBP
$426 USD
View
A
Retailer 10
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£335 GBP
View
A
Retailer 11
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£368 GBP
$493 USD
View
B+
Retailer 12
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£387 GBP
$518 USD
View
B+
Retailer 13
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£448 GBP
A$924 AUD
View
B+
Retailer 14
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£487 GBP
$653 USD
View
Retailer 15
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£543 GBP
$727 USD
View
Price last confirmed 45 days ago
B+
Retailer 16
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£590 GBP
$790 USD
View
Retailer 17
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£601 GBP
$805 USD
View
Price last confirmed 9 days ago
B
Retailer 18
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£620 GBP
$831 USD
View
B
Retailer 19
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£629 GBP
$843 USD
View
Retailer 20
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£784 GBP
$1,050 USD
View
Price last confirmed 9 days ago
B
Retailer 21
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£862 GBP
View
B
Retailer 22
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£886 GBP
$1,187 USD
View
Most Expensive
Novita Diamonds
cert_784690535 · Jun 9
£1,014 GBP
A$2,090 AUD
View
Our latest check could not confirm this price
22 more retailers have this diamond
Prices start from £148 GBPSave up to £738 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
£148 GBP