CaratHunter
Plans
Round|Lab Grown|IGI

3.07ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG848608948

Shape and cutting style on the report: Round brilliant

Certificate IGI LG848608948

Diamond specifications and retailer prices

From £250 GBP
$335 USD
As of October 31, 2026
Save £1,280 GBP (84%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,530 GBP at Brilliant Earth · As of October 29, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG848608948 or 848608948. Listed at 3 retailers as of October 29, 2026, with prices from £250 to £1,530, a £1,280 spread on the same certified stone. Brilliant Earth lists it at £1,530. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.07
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848608948
Dimensions9.23 × 9.26 × 5.78 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
9.23 mm9.26 mm3.07 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848608948
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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 31
Current: £502 GBP|Low: £250 GBP|High: £507 GBP|Avg: £448 GBP|-0.2%
Retailer 1
Retailer 2
October 31, 2026
Retailer 2£250 GBP
Retailer 1£502 GBP

7 data points across 2 retailers

3 retailers£250 GBP to £1,530 GBP

A
Cheapest Retailer
-
£250 GBP
$335 USD
Final sale: no returns
A
Retailer 2
-
£502 GBP
View
Most Expensive
B
Brilliant Earth
22260220A · Oct 29
£1,530 GBP
$2,050 USD
View
2 more retailers have this diamond
Prices start from £250 GBPSave up to £1,280 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
£250 GBP