CaratHunter
Plans
Cushion|Lab Grown|IGI

1.15ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG653439405

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG653439405

Diamond specifications and retailer prices

From $433 NZD
As of November 6, 2026
Save $2,562 NZD (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,716 NZD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.15ct lab-grown cushion diamond

This 1.15ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG653439405 or 653439405. Listed at 10 retailers as of November 6, 2026, with a 592% 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

1.15
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653439405
Dimensions6.22 × 6.10 × 4.01 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.22 mm6.10 mm1.15 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653439405
Side View
Table 62.0%Crown 31.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 65.7%

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: Nov 6
Current: $3,716 NZD|Low: $227 NZD|High: $3,716 NZD|Avg: $1,367 NZD
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
November 7, 2026
Retailer 8$433 NZD
Retailer 6$480 NZD
Retailer 10$548 NZD
Retailer 11$644 NZD
Retailer 7$983 NZD
Retailer 2$989 NZD
Retailer 4$1,044 NZD
Retailer 12$1,209 NZD
Retailer 3$1,921 NZD
Retailer 9$2,008 NZD
Retailer 5$2,118 NZD
Do Amore Diamonds$3,716 NZD

43 data points across 12 retailers

10 retailers$433 NZD to $2,994 NZD

A
Cheapest Retailer
-
$433 NZD
Final sale: no returns
Retailer 2
-
$480 NZD
View
Price last confirmed 22 days ago
A
Retailer 3
-
$548 NZD
View
A
Retailer 4
-
$644 NZD
View
B+
Retailer 5
-
$983 NZD
View
B+
Retailer 6
-
$989 NZD
View
B
Retailer 7
-
$2,008 NZD
View
B
Retailer 8
-
$2,118 NZD
View
B
Retailer 9
-
$2,994 NZD
View
Most Expensive
Do Amore Diamonds
27-FFC2DA70E · Nov 6
$3,716 NZD
$2,060 USD
View
Price under review
9 more retailers have this diamond
Prices start from $433 NZDSave up to $2,562 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.

A
1.15ct Cushion
$433 NZD