CaratHunter
Plans
Round|Lab Grown|GIA

1.00ct I SI2 Round Lab Grown Diamond

FR • I/SI2 • GIA 6251957162

Certificate GIA 6251957162

Diamond specifications and retailer prices

From £802 GBP
$1,068 USD
As of October 28, 2026
Save £697 GBP (47%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,499 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by GIA 6251957162. Listed at 4 retailers as of October 28, 2026, with prices from £802 to £1,499, a £697 spread on the same certified stone. MOH London lists it at £1,499. 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

1.00
Carat
I
Colour
SI2
Clarity
Fair
Cut

Specifications

CutFair
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6251957162
Dimensions6.03 × 6.08 × 4.03 mm
L/W Ratio1.01
Top View
6.03 mm6.08 mm1.00 ctI / SI2
OriginLab Grown
CutFair
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6251957162
Side View
Table 55.0%CrownGirdlePavilionCulet: NoneDepth 66.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £1,499 GBP|Low: £773 GBP|High: £1,534 GBP|Avg: £1,226 GBP|+2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 3£802 GBP
Retailer 2£970 GBP
Retailer 4£1,322 GBP
Retailer 5£1,452 GBP
MOH London£1,499 GBP

30 data points across 5 retailers

4 retailers£802 GBP to £1,499 GBP

B+
Cheapest Retailer
-
£802 GBP
$1,068 USD
B
Retailer 2
-
£970 GBP
€1,230 EUR
View
C
Retailer 3
-
£1,322 GBP
$1,760 USD
View
Most Expensive
C
MOH London
086C3C874 · Oct 29
£1,499 GBP
View
3 more retailers have this diamond
Prices start from £802 GBPSave up to £697 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+
1.00ct Round
£802 GBP