Round|Lab Grown|GCAL

1.00ct I VS1 Round Lab Grown Diamond

VG • I/VS1 • GCAL 271000031

Shape and cutting style on the report: Round brilliant

Certificate GCAL 271000031

Diamond specifications and retailer prices

From $193 USD
As of October 25, 2026
Save $806 USD (81%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $999 USD at MOH London · As of October 26, 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by GCAL 271000031. Listed at 5 retailers as of October 25, 2026, with prices from $193 to $999, a $806 spread on the same certified stone. MOH London lists it at $999. 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
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 271000031
Dimensions6.41 × 6.39 × 3.91 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.41 mm6.39 mm1.00 ctI / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGCAL 271000031
Side View
Table 58.0%Crown 36.5°GirdlePavilion 40.2°Culet: NoneDepth 61.1%

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 25
Current: $999 USD|Low: $183 USD|High: $1,010 USD|Avg: $552 USD|+4.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 26, 2026
Retailer 2$193 USD
Retailer 3$353 USD
Retailer 4$354 USD
Retailer 5$860 USD
MOH London$999 USD

11 data points across 5 retailers

5 retailers$193 USD to $999 USD

B+
Cheapest Retailer
-
$193 USD
B+
Retailer 2
-
$353 USD
View
B+
Retailer 3
-
$354 USD
View
B
Retailer 4
-
$860 USD
View
Most Expensive
B
MOH London
271000031 · Oct 26
$999 USD
£787 GBP
View
4 more retailers have this diamond
Prices start from $193 USDSave up to $806 USD

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
$193 USD