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Cushion|Lab Grown|IGI

3.53ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG633406178

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG633406178

Diamond specifications and retailer prices

From $810 AUD
$568 USD
As of November 1, 2026
Save $5,625 AUD (87%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,435 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 3.53ct lab-grown cushion diamond

This 3.53ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG633406178 or 633406178. Listed at 9 retailers as of November 1, 2026, with prices from $810 to $6,435, a $5,625 spread on the same certified stone. Do Amore Diamonds lists it at $6,435. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.53
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG633406178
Dimensions9.56 × 8.57 × 5.80 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.56 mm8.57 mm3.53 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG633406178
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 67.7%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $6,435 AUD|Low: $810 AUD|High: $8,932 AUD|Avg: $3,861 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 14$810 AUD
Retailer 15$1,187 AUD
Retailer 13$1,330 AUD
Retailer 4$1,389 AUD
Retailer 11$1,394 AUD
Retailer 9$1,398 AUD
Retailer 16$2,262 AUD
Retailer 12$3,427 AUD
Retailer 3$3,607 AUD
Retailer 10$4,195 AUD
Retailer 2$4,308 AUD
Retailer 7$6,371 AUD
Do Amore Diamonds$6,435 AUD
Retailer 6$6,635 AUD
Retailer 8$6,635 AUD
Retailer 5$8,932 AUD

21 data points across 16 retailers

9 retailers$810 AUD to $6,435 AUD

A
Cheapest Retailer
-
$810 AUD
$568 USD
Final sale: no returns
A
Retailer 2
-
$1,187 AUD
HK$6,500 HKD
View
A
Retailer 3
-
$1,330 AUD
$932 USD
View
B+
Retailer 4
-
$1,394 AUD
$977 USD
View
A
Retailer 5
-
$1,398 AUD
$980 USD
View
B
Retailer 6
-
$3,427 AUD
SGD 3,246 SGD
View
B
Retailer 7
-
$4,195 AUD
$2,940 USD
View
B
Retailer 8
-
$4,308 AUD
£2,377 GBP
View
Most Expensive
B
Do Amore Diamonds
27-380DAF346 · Nov 2
$6,435 AUD
$4,510 USD
View
8 more retailers have this diamond
Prices start from $810 AUDSave up to $5,625 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.

A
3.53ct Cushion
$810 AUD