CaratHunter
Plans
Cushion|Lab Grown|IGI

1.98ct I SI1 Cushion Lab Grown Diamond

VG • I/SI1 • IGI LG436045621

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG436045621

Diamond specifications and retailer prices

From $1,080 USD
As of October 30, 2026
Save $2,019 USD (65%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,667 USD at MOH London · As of October 21, 2026
View at MOH London

About this 1.98ct lab-grown cushion diamond

This 1.98ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG436045621 or 436045621. Listed at 6 retailers as of October 26, 2026, with a 187% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.98
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045621
Dimensions7.61 × 7.57 × 4.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
7.61 mm7.57 mm1.98 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045621
Side View
Table 60.5%Crown 37.1°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,667 USD|Low: $1,080 USD|High: $5,705 USD|Avg: $3,032 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$1,080 USD
Retailer 5$1,905 USD
Retailer 3$1,974 USD
Retailer 6$2,145 USD
Retailer 9$2,192 USD
Retailer 7$2,651 USD
Retailer 4$3,099 USD
Retailer 8$5,652 USD
MOH London$5,667 USD

11 data points across 9 retailers

6 retailers$1,080 USD to $3,099 USD

A
Cheapest Retailer
-
$1,080 USD
B
Retailer 2
-
$1,905 USD
View
Final sale: no returns
Retailer 3
-
$1,974 USD
View
Price last confirmed 18 days ago
B
Retailer 4
-
$2,145 USD
View
B
Retailer 5
-
$3,099 USD
View
Most Expensive
MOH London
LG436045621 · Oct 21
$5,667 USD
£4,462 GBP
View
Price last confirmed 10 days ago
5 more retailers have this diamond
Prices start from $1,080 USDSave up to $2,019 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.

A
1.98ct Cushion
$1,080 USD