CaratHunter
Plans
Round|Lab Grown|IGI

1.00ct I VS1 Round Lab Grown Diamond

VG • I/VS1 • IGI LG418021821

Shape and cutting style on the report: Round brilliant

Certificate IGI LG418021821

Diamond specifications and retailer prices

From $412 SGD
$322 USD
As of November 1, 2026
Save $613 SGD (60%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,024 SGD at MOH London · As of November 1, 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 IGI LG418021821 or 418021821. Listed at 4 retailers as of November 1, 2026, with prices from $412 to $1,024, a $613 spread on the same certified stone. MOH London lists it at $1,024. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle37.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG418021821
Dimensions6.26 × 6.20 × 3.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT).
Top View
6.26 mm6.20 mm1.00 ctI / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG418021821
Side View
Table 59.0%Crown 37.5°Girdle: ThickPavilion 40.2°Culet: NoneDepth 63.4%

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: Nov 1
Current: $1,024 SGD|Low: $297 SGD|High: $1,127 SGD|Avg: $604 SGD|-9.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 2$412 SGD
Retailer 5$487 SGD
Retailer 3$532 SGD
Retailer 4$571 SGD
Retailer 6$604 SGD
MOH London$1,024 SGD

12 data points across 6 retailers

4 retailers$412 SGD to $1,024 SGD

B+
Cheapest Retailer
-
$412 SGD
$322 USD
B+
Retailer 2
-
$532 SGD
$416 USD
View
B
Retailer 3
-
$571 SGD
$447 USD
View
Most Expensive
B
MOH London
LG418021821 · Nov 1
$1,024 SGD
£631 GBP
View
3 more retailers have this diamond
Prices start from $412 SGDSave up to $613 SGD

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
$412 SGD