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Round|Lab Grown|GIA

1.01ct I SI2 Round Lab Grown Diamond

VG • I/SI2 • GIA 5186258361

Certificate GIA 5186258361

Diamond specifications and retailer prices

From £3,302 GBP
€4,213 EUR
As of October 30, 2026
Save £102 GBP (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,404 GBP at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 1.01ct lab-grown round diamond

This 1.01ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 5186258361. Listed at 2 retailers as of October 30, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.01
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 5186258361
Dimensions6.30 × 6.33 × 4.02 mm
L/W Ratio1.00
Top View
6.30 mm6.33 mm1.01 ctI / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5186258361
Side View
Table 56.0%Crown 36.5°Girdle: MED-THKPavilion 40.8°CuletDepth 63.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £3,404 GBP|Low: £2,238 GBP|High: £3,426 GBP|Avg: £2,799 GBP|+1.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 4£2,263 GBP
Retailer 3£2,293 GBP
Retailer 2£3,302 GBP
77 Diamonds£3,404 GBP

41 data points across 4 retailers

2 retailers£3,302 GBP to £3,404 GBP

B
Cheapest Retailer
-
£3,302 GBP
€4,213 EUR
Most Expensive
C
77 Diamonds
RBZFRMJXSGV · Oct 30
£3,404 GBP
View
1 more retailer has this diamond
Prices start from £3,302 GBPSave up to £102 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
1.01ct Round
£3,302 GBP