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Round|Lab Grown|IGI

1.07ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG305809679

Shape and cutting style on the report: Round brilliant

Certificate IGI LG305809679

Diamond specifications and retailer prices

From £633 GBP
$850 USD
As of October 28, 2026
Save £719 GBP (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,252 GBP at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 1.07ct lab-grown round diamond

This 1.07ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG305809679 or 305809679. Listed at 14 retailers as of October 28, 2026, with a 114% 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

1.07
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG305809679
Dimensions6.62 × 6.57 × 3.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.62 mm6.57 mm1.07 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG305809679
Side View
Table 60.5%Crown 33.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £2,252 GBP|Low: £633 GBP|High: £3,546 GBP|Avg: £1,924 GBP|+2.4%
Cape 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
November 1, 2026
Retailer 11£633 GBP
Retailer 10£1,056 GBP
Retailer 4£1,149 GBP
Retailer 15£1,182 GBP
Retailer 12£1,225 GBP
Retailer 7£1,353 GBP
Retailer 5£1,657 GBP
Retailer 13£1,934 GBP
Retailer 9£2,092 GBP
Retailer 14£2,224 GBP
Cape Diamonds£2,252 GBP
Retailer 3£2,297 GBP
Retailer 8£2,952 GBP
Retailer 2£3,499 GBP
Retailer 6£3,507 GBP

32 data points across 15 retailers

14 retailers£633 GBP to £1,353 GBP

B
Cheapest Retailer
-
£633 GBP
$850 USD
B
Retailer 2
-
£1,056 GBP
$1,417 USD
View
B
Retailer 3
-
£1,149 GBP
$1,542 USD
View
B
Retailer 4
-
£1,182 GBP
$1,586 USD
View
Final sale: no returns
Retailer 5
-
£1,225 GBP
$1,644 USD
View
Price last confirmed 20 days ago
B
Retailer 6
-
£1,225 GBP
$1,644 USD
View
B
Retailer 7
-
£1,353 GBP
$1,815 USD
View
Retailer 8
-
£1,934 GBP
$2,595 USD
View
Price under review
Retailer 9
-
£2,092 GBP
€2,674 EUR
View
Price under review
Retailer 10
-
£2,224 GBP
$2,984 USD
View
Price under review
Most Expensive
Cape Diamonds
cert_305809679 · Oct 29
£2,252 GBP
ZAR 48,828 ZAR
View
Price under review
10 more retailers have this diamond
Prices start from £633 GBPSave up to £719 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.

B
1.07ct Round
£633 GBP