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Round|Lab Grown|GIA

1.01ct I SI1 Round Lab Grown Diamond

VG • I/SI1 • GIA 11780507

Certificate GIA 11780507

Diamond specifications and retailer prices

From £1,719 GBP
As of November 1, 2026
Save £46 GBP (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,766 GBP at Yorxs · As of November 1, 2026
View at Yorxs

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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 11780507. Listed at 2 retailers as of November 1, 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37°
Pavilion angle37.9°
OriginLab Grown
Grading LabGIA
CertificateGIA 11780507
Dimensions6.35 × 6.37 × 3.99 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.35 mm6.37 mm1.01 ctI / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 11780507
Side View
Table 65.0%Crown 37°Girdle: STK-UNDPavilion 37.9°CuletDepth 69.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: £1,719 GBP|Low: £1,689 GBP|High: £1,777 GBP|Avg: £1,735 GBP|+1.8%
Retailer 1
Yorxs
November 1, 2026
Retailer 1£1,719 GBP
Yorxs£1,766 GBP

39 data points across 2 retailers

2 retailers£1,719 GBP to £1,766 GBP

B
Cheapest Retailer
-
£1,719 GBP
Most Expensive
B
Yorxs
9272 · Nov 1
£1,766 GBP
€2,253 EUR
View
1 more retailer has this diamond
Prices start from £1,719 GBPSave up to £46 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
£1,719 GBP