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Cushion|Lab Grown|IGI

0.99ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG636419056

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG636419056

Diamond specifications and retailer prices

From $509 USD
£401 GBP
As of October 29, 2026
Save $561 USD (52%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,070 USD at Shane Co · As of October 28, 2026
View at Shane Co

About this 0.99ct lab-grown cushion diamond

This 0.99ct lab-grown cushion sits in the just-under-one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG636419056 or 636419056. Listed at 2 retailers as of October 28, 2026, with prices from $509 to $1,070, a $561 spread on the same certified stone. Shane Co lists it at $1,070. 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

0.99
Carat
G
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636419056
Dimensions7.03 × 5.22 × 3.49 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.03 mm5.22 mm0.99 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636419056
Side View
Table 62.0%Crown 33.6°Girdle: MED-STKPavilion 35.7°Culet: NoneDepth 66.9%

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 29
Current: $509 USD|Low: $509 USD|High: $1,095 USD|Avg: $758 USD
Retailer 1
Shane Co
September 18, 2026
Retailer 1$509 USD
Shane Co$1,070 USD

7 data points across 2 retailers

2 retailers$509 USD to $1,070 USD

B+
Cheapest Retailer
-
$509 USD
£401 GBP
Most Expensive
B
Shane Co
25K0E9T · Oct 28
$1,070 USD
View
1 more retailer has this diamond
Prices start from $509 USDSave up to $561 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+
0.99ct Cushion
$509 USD