CaratHunter
Plans
Cushion|Lab Grown|IGI

1.61ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG544280403

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG544280403

Diamond specifications and retailer prices

From $392 NZD
$221 USD
As of November 1, 2026
Save $1,950 NZD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,342 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.61ct lab-grown cushion diamond

This 1.61ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG544280403 or 544280403. Listed at 13 retailers as of October 31, 2026, with prices from $392 to $2,342, a $1,950 spread on the same certified stone. Brilliant Earth lists it at $2,342. 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

1.61
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle28.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544280403
Dimensions7.72 × 6.20 × 3.88 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.72 mm6.20 mm1.61 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG544280403
Side View
Table 64.0%Crown 33.6°Girdle: MED-THKPavilion 28.2°Culet: NoneDepth 62.6%

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 1
Current: $2,342 NZD|Low: $392 NZD|High: $3,708 NZD|Avg: $1,211 NZD|-36.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9$392 NZD
Retailer 5$589 NZD
Retailer 3$712 NZD
Retailer 2$798 NZD
Retailer 10$880 NZD
Retailer 8$1,033 NZD
Retailer 4$1,052 NZD
Retailer 6$1,854 NZD
Retailer 7$2,051 NZD
Brilliant Earth$2,342 NZD

43 data points across 10 retailers

13 retailers$392 NZD to $2,342 NZD

A
Cheapest Retailer
-
$392 NZD
$221 USD
Final sale: no returns
B+
Retailer 2
-
$589 NZD
$332 USD
View
A
Retailer 3
-
$712 NZD
€382 EUR
View
A
Retailer 4
-
$798 NZD
£354 GBP
View
A
Retailer 5
-
$880 NZD
$496 USD
View
A
Retailer 6
-
$971 NZD
$547 USD
View
A
Retailer 7
-
$1,033 NZD
$582 USD
View
A
Retailer 8
-
$1,052 NZD
$593 USD
View
B
Retailer 9
-
$1,497 NZD
$843 USD
View
Retailer 10
-
$1,854 NZD
$1,045 USD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$2,051 NZD
£910 GBP
View
B
Retailer 12
-
$2,107 NZD
$1,188 USD
View
Most Expensive
B
Brilliant Earth
10789422A · Oct 31
$2,342 NZD
$1,320 USD
View
12 more retailers have this diamond
Prices start from $392 NZDSave up to $1,950 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
1.61ct Cushion
$392 NZD