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Cushion|Lab Grown|IGI

1.35ct G VVS1 Cushion Lab Grown Diamond

ID • G/VVS1 • IGI LG840630374

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840630374

Diamond specifications and retailer prices

From £182 GBP
$244 USD
As of October 30, 2026
Save £1,022 GBP (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,204 GBP at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.35ct lab-grown cushion diamond

This 1.35ct lab-grown cushion 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 LG840630374 or 840630374. Listed at 16 retailers as of October 30, 2026, with prices from £182 to £1,204, a £1,022 spread on the same certified stone. Helzberg Diamonds lists it at £1,204. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840630374
Dimensions7.96 × 5.40 × 3.75 mm
L/W Ratio1.47
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
Top View
7.96 mm5.40 mm1.35 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840630374
Side View
Table 62.0%Crown 38.7°Girdle: STK-THKPavilion 34.4°Culet: NoneDepth 69.4%

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: £1,204 GBP|Low: £173 GBP|High: £1,209 GBP|Avg: £587 GBP
Helzberg Diamonds
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 31, 2026
Retailer 15£182 GBP
Retailer 12£225 GBP
Retailer 2£338 GBP
Retailer 16£345 GBP
Retailer 3£346 GBP
Retailer 9£371 GBP
Retailer 14£386 GBP
Retailer 5£492 GBP
Retailer 4£510 GBP
Retailer 10£525 GBP
Retailer 6£655 GBP
Retailer 7£687 GBP
Retailer 8£810 GBP
Retailer 13£811 GBP
Retailer 11£1,000 GBP
Helzberg Diamonds£1,204 GBP

19 data points across 16 retailers

16 retailers£182 GBP to £1,204 GBP

A
Cheapest Retailer
-
£182 GBP
$244 USD
Final sale: no returns
A
Retailer 2
-
£225 GBP
View
A
Retailer 3
-
£338 GBP
€431 EUR
View
A
Retailer 4
-
£345 GBP
$462 USD
View
A
Retailer 5
-
£346 GBP
ZAR 7,487 ZAR
View
A
Retailer 6
-
£371 GBP
View
A
Retailer 7
-
£386 GBP
$517 USD
View
B+
Retailer 8
-
£492 GBP
A$1,014 AUD
View
B+
Retailer 9
-
£510 GBP
$684 USD
View
B+
Retailer 10
-
£525 GBP
$703 USD
View
B+
Retailer 11
-
£655 GBP
SGD 1,186 SGD
View
B+
Retailer 12
-
£687 GBP
$920 USD
View
Retailer 13
-
£810 GBP
$1,085 USD
View
Price last confirmed 12 days ago
B
Retailer 14
-
£811 GBP
View
B
Retailer 15
-
£1,000 GBP
$1,340 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJGJNK · Oct 31
£1,204 GBP
$1,613 USD
View
15 more retailers have this diamond
Prices start from £182 GBPSave up to £1,022 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
1.35ct Cushion
£182 GBP