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Cushion|Lab Grown|IGI

3.50ct H SI1 Cushion Lab Grown Diamond

ID • H/SI1 • IGI LG522237367

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG522237367

Diamond specifications and retailer prices

From $4,185 NZD
As of November 6, 2026
Save $18,174 NZD (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $31,913 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 3.5ct lab-grown cushion diamond

This 3.5ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522237367 or 522237367. Listed at 7 retailers as of November 6, 2026, with a 434% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.50
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522237367
Dimensions8.92 × 8.18 × 5.30 mm
L/W Ratio1.09
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
8.92 mm8.18 mm3.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522237367
Side View
Table 61.0%Crown 36.3°Girdle: THK-VTKPavilion 32.5°Culet: NoneDepth 64.8%

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 6
Current: $31,913 NZD|Low: $4,185 NZD|High: $32,428 NZD|Avg: $18,835 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3$4,185 NZD
Retailer 10$14,705 NZD
Retailer 6$16,969 NZD
Retailer 7$17,426 NZD
Retailer 5$17,575 NZD
Retailer 8$17,974 NZD
Retailer 4$20,335 NZD
Retailer 2$22,359 NZD
Retailer 9$22,643 NZD
MOH London$31,913 NZD

39 data points across 10 retailers

7 retailers$4,185 NZD to $22,359 NZD

B+
Cheapest Retailer
-
$4,185 NZD
B
Retailer 2
-
$16,969 NZD
View
Final sale: no returns
B
Retailer 3
-
$17,426 NZD
View
Retailer 4
-
$17,575 NZD
View
Price last confirmed 26 days ago
B
Retailer 5
-
$20,335 NZD
View
B
Retailer 6
-
$22,359 NZD
View
Most Expensive
MOH London
LG522237367 · Nov 5
$31,913 NZD
£13,930 GBP
View
Price under review
6 more retailers have this diamond
Prices start from $4,185 NZDSave up to $18,174 NZD

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+
3.50ct Cushion
$4,185 NZD