Round|Lab Grown|IGI

3.07ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG818687186

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818687186

Diamond specifications and retailer prices

From £311 GBP
$417 USD
As of October 29, 2026
Save £1,495 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,657 GBP at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 3.07ct lab-grown round diamond

This 3.07ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818687186 or 818687186. Listed at 21 retailers as of October 29, 2026, with a 480% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.07
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818687186
Dimensions9.25 × 9.29 × 5.70 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.25 mm9.29 mm3.07 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818687186
Side View
Table 59.0%Crown 35.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,657 GBP|Low: £299 GBP|High: £3,008 GBP|Avg: £944 GBP|-11.7%
Brilliant Earth
Retailer 2
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Retailer 21
November 1, 2026
Retailer 4£311 GBP
Retailer 5£349 GBP
Retailer 7£386 GBP
Retailer 9£386 GBP
Retailer 13£516 GBP
Retailer 18£601 GBP
Retailer 8£610 GBP
Retailer 12£613 GBP
Retailer 17£614 GBP
Retailer 15£629 GBP
Retailer 6£781 GBP
Retailer 19£813 GBP
Retailer 20£838 GBP
Retailer 3£1,083 GBP
Retailer 10£1,241 GBP
Retailer 14£1,267 GBP
Retailer 16£1,346 GBP
Retailer 2£1,419 GBP
Retailer 21£1,500 GBP
Retailer 11£1,806 GBP
Brilliant Earth£2,657 GBP

29 data points across 21 retailers

21 retailers£311 GBP to £1,806 GBP

A
Cheapest Retailer
-
£311 GBP
$417 USD
A
Retailer 2
-
£349 GBP
$467 USD
View
Retailer 3
-
£386 GBP
$517 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£386 GBP
$517 USD
View
A
Retailer 5
-
£516 GBP
View
A
Retailer 6
-
£601 GBP
$805 USD
View
B+
Retailer 7
-
£610 GBP
$817 USD
View
A
Retailer 8
-
£613 GBP
$821 USD
View
A
Retailer 9
-
£614 GBP
€784 EUR
View
A
Retailer 10
-
£629 GBP
View
B+
Retailer 11
-
£781 GBP
$1,047 USD
View
A
Retailer 12
-
£813 GBP
A$1,676 AUD
View
A
Retailer 13
-
£838 GBP
ZAR 18,145 ZAR
View
B
Retailer 14
-
£1,083 GBP
$1,451 USD
View
B+
Retailer 15
-
£1,241 GBP
$1,663 USD
View
B+
Retailer 16
-
£1,267 GBP
$1,697 USD
View
B+
Retailer 17
-
£1,346 GBP
$1,804 USD
View
B
Retailer 18
-
£1,419 GBP
View
Retailer 19
-
£1,500 GBP
$2,010 USD
View
Price last confirmed 14 days ago
B
Retailer 20
-
£1,806 GBP
$2,420 USD
View
Most Expensive
Brilliant Earth
21688566A · Oct 24
£2,657 GBP
$3,560 USD
View
Price last confirmed 8 days ago
20 more retailers have this diamond
Prices start from £311 GBPSave up to £1,495 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
3.07ct Round
£311 GBP