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Round|Lab Grown|IGI

1.28ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG789605200

Shape and cutting style on the report: Round brilliant

Certificate IGI LG789605200

Diamond specifications and retailer prices

From £130 GBP
$175 USD
As of October 29, 2026
Save £700 GBP (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £830 GBP at Reve Diamonds · As of October 30, 2026
View at Reve 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 G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG789605200 or 789605200. Listed at 17 retailers as of October 29, 2026, with prices from £130 to £830, a £700 spread on the same certified stone. Reve Diamonds lists it at £830. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789605200
Dimensions7.02 × 6.99 × 4.29 mm
L/W Ratio1.00
Girdle conditionFaceted
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 Faint Blue
Top View
7.02 mm6.99 mm1.28 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789605200
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 40.9°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: £287 GBP|Low: £125 GBP|High: £830 GBP|Avg: £333 GBP|+5.5%
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
Reve Diamonds
November 1, 2026
Retailer 13£130 GBP
Retailer 14£146 GBP
Retailer 4£151 GBP
Retailer 2£162 GBP
Retailer 12£162 GBP
Retailer 5£225 GBP
Retailer 7£271 GBP
Retailer 8£278 GBP
Retailer 1£287 GBP
Retailer 6£349 GBP
Retailer 9£395 GBP
Retailer 3£520 GBP
Retailer 11£550 GBP
Retailer 10£758 GBP
Reve Diamonds£830 GBP

44 data points across 15 retailers

17 retailers£130 GBP to £830 GBP

A
Cheapest Retailer
-
£130 GBP
$175 USD
A
Retailer 2
-
£146 GBP
$196 USD
View
Final sale: no returns
A
Retailer 3
-
£151 GBP
$203 USD
View
A
Retailer 4
-
£162 GBP
$217 USD
View
A
Retailer 5
-
£162 GBP
$217 USD
View
B+
Retailer 6
-
£225 GBP
$302 USD
View
A
Retailer 7
-
£271 GBP
View
A
Retailer 8
-
£278 GBP
ZAR 6,026 ZAR
View
A
Retailer 9
-
£287 GBP
View
B+
Retailer 10
-
£349 GBP
$468 USD
View
B+
Retailer 11
-
£360 GBP
$483 USD
View
B+
Retailer 12
-
£395 GBP
A$815 AUD
View
B+
Retailer 13
-
£520 GBP
$698 USD
View
B
Retailer 14
-
£550 GBP
$738 USD
View
B
Retailer 15
-
£561 GBP
$753 USD
View
B
Retailer 16
-
£758 GBP
View
Most Expensive
B
Reve Diamonds
7901BE198 · Oct 30
£830 GBP
$1,114 USD
View
16 more retailers have this diamond
Prices start from £130 GBPSave up to £700 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
£130 GBP