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Round|Lab Grown|GIA

3.08ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 6492513762

Certificate GIA 6492513762

Diamond specifications and retailer prices

From £738 GBP
As of November 4, 2026
Save £2,858 GBP (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,596 GBP at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 3.08ct lab-grown round diamond

This 3.08ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6492513762. Listed at 13 retailers as of November 4, 2026, with prices from £738 to £3,596, a £2,858 spread on the same certified stone. Brilliant Earth lists it at £3,596. 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

3.08
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabGIA
CertificateGIA 6492513762
Dimensions9.38 × 9.41 × 5.69 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
9.38 mm9.41 mm3.08 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6492513762
Side View
Table 62.0%Crown 33.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.6%

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: Nov 4
Current: £3,596 GBP|Low: £738 GBP|High: £3,633 GBP|Avg: £1,664 GBP|-1.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11£738 GBP
Retailer 3£849 GBP
Retailer 8£851 GBP
Retailer 10£993 GBP
Retailer 9£1,027 GBP
Retailer 5£1,234 GBP
Retailer 2£1,273 GBP
Retailer 7£1,636 GBP
Retailer 4£2,201 GBP
Retailer 6£2,852 GBP
Retailer 12£3,002 GBP
Brilliant Earth£3,596 GBP

44 data points across 12 retailers

13 retailers£738 GBP to £3,596 GBP

A
Cheapest Retailer
-
£738 GBP
Final sale: no returns
B+
Retailer 2
-
£849 GBP
View
B+
Retailer 3
-
£851 GBP
View
B+
Retailer 4
-
£993 GBP
View
B+
Retailer 5
-
£1,027 GBP
View
B+
Retailer 6
-
£1,234 GBP
View
B+
Retailer 7
-
£1,273 GBP
View
B
Retailer 8
-
£1,580 GBP
View
B
Retailer 9
-
£1,636 GBP
View
B
Retailer 10
-
£2,201 GBP
View
B
Retailer 11
-
£2,852 GBP
View
B
Retailer 12
-
£3,002 GBP
View
Most Expensive
B
Brilliant Earth
10767457A · Nov 5
£3,596 GBP
$4,840 USD
View
12 more retailers have this diamond
Prices start from £738 GBPSave up to £2,858 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
3.08ct Round
£738 GBP