CaratHunter
Plans
Cushion|Lab Grown|IGI

1.61ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG551273866

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG551273866

Diamond specifications and retailer prices

From $2,526 AUD
$1,770 USD
As of October 27, 2026
5 retailers carry this diamond
Most expensive: $2,526 AUD at Do Amore Diamonds
View at Do Amore Diamonds

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG551273866 or 551273866. Listed at 5 retailers as of October 27, 2026. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551273866
Dimensions7.65 × 6.30 × 4.28 mm
L/W Ratio1.21
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
7.65 mm6.30 mm1.61 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG551273866
Side View
Table 62.0%Crown 35.4°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $2,526 AUD|Low: $210 AUD|High: $2,668 AUD|Avg: $1,471 AUD|-5.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 26, 2026
Retailer 6$311 AUD
Retailer 3$574 AUD
Retailer 4$1,144 AUD
Retailer 2$1,682 AUD
Retailer 5$2,511 AUD
Do Amore Diamonds$2,526 AUD

17 data points across 6 retailers

5 retailers

Retailer 1
-
$574 AUD
$402 USD
Price last confirmed 8 days ago
Retailer 2
-
$1,144 AUD
$802 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$1,682 AUD
£928 GBP
View
Price last confirmed 7 days ago
Retailer 4
-
$2,511 AUD
$1,760 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Do Amore Diamonds
27-283F6BDEB · Oct 27
$2,526 AUD
$1,770 USD
View
4 more retailers have this diamond

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
1.61ct Cushion
$2,526 AUD