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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 $1,537 AUD
$1,080 USD
As of October 31, 2026
Save $6,486 AUD (81%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,024 AUD at MOH London · As of November 1, 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 31, 2026, with prices from $1,537 to $8,024, a $6,486 spread on the same certified stone. MOH London lists it at $8,024. 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

1.98
Carat
I
Colour
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
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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 →
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 31
Current: $8,024 AUD|Low: $1,537 AUD|High: $8,121 AUD|Avg: $4,303 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$1,537 AUD
Retailer 5$2,712 AUD
Retailer 3$2,810 AUD
Retailer 6$3,054 AUD
Retailer 9$3,121 AUD
Retailer 7$3,774 AUD
Retailer 4$4,412 AUD
MOH London$8,024 AUD
Retailer 8$8,045 AUD

12 data points across 9 retailers

6 retailers$1,537 AUD to $8,024 AUD

B+
Cheapest Retailer
-
$1,537 AUD
$1,080 USD
B
Retailer 2
-
$2,712 AUD
$1,905 USD
View
Final sale: no returns
Retailer 3
-
$2,810 AUD
$1,974 USD
View
Price last confirmed 20 days ago
B
Retailer 4
-
$3,054 AUD
$2,145 USD
View
B
Retailer 5
-
$4,412 AUD
$3,099 USD
View
Most Expensive
B
MOH London
LG436045621 · Nov 1
$8,024 AUD
£4,438 GBP
View
5 more retailers have this diamond
Prices start from $1,537 AUDSave up to $6,486 AUD

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+
1.98ct Cushion
$1,537 AUD