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Radiant|Lab Grown|IGI

1.69ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG618477171

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG618477171

Diamond specifications and retailer prices

From $226 AUD
$159 USD
As of October 27, 2026
Save $1,952 AUD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,178 AUD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.69ct lab-grown radiant diamond

This 1.69ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG618477171 or 618477171. Listed at 10 retailers as of October 27, 2026, with prices from $226 to $2,178, a $1,952 spread on the same certified stone. Do Amore Diamonds lists it at $2,178. 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

1.69
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618477171
Dimensions8.35 × 5.86 × 3.97 mm
L/W Ratio1.42
Culet sizeNone
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
8.35 mm5.86 mm1.69 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618477171
Side View
Table 65.0%Crown 43.7°Girdle: MED-STKPavilion 35.4°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: Oct 27
Current: $2,178 AUD|Low: $226 AUD|High: $2,306 AUD|Avg: $1,026 AUD|-5.6%
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
October 29, 2026
Retailer 8$226 AUD
Retailer 6$263 AUD
Retailer 13$269 AUD
Retailer 10$511 AUD
Retailer 3$607 AUD
Retailer 4$891 AUD
Retailer 7$955 AUD
Retailer 9$999 AUD
Retailer 11$1,035 AUD
Retailer 5$1,352 AUD
Retailer 2$1,461 AUD
Retailer 12$1,537 AUD
Do Amore Diamonds$2,178 AUD

21 data points across 13 retailers

10 retailers$226 AUD to $2,178 AUD

A
Cheapest Retailer
-
$226 AUD
$159 USD
A
Retailer 2
-
$263 AUD
$185 USD
View
A
Retailer 3
-
$269 AUD
$189 USD
View
Final sale: no returns
B+
Retailer 4
-
$511 AUD
$359 USD
View
B+
Retailer 5
-
$955 AUD
$671 USD
View
B+
Retailer 6
-
$999 AUD
$702 USD
View
B+
Retailer 7
-
$1,035 AUD
$727 USD
View
B+
Retailer 8
-
$1,461 AUD
£808 GBP
View
B
Retailer 9
-
$1,537 AUD
$1,080 USD
View
Most Expensive
B
Do Amore Diamonds
27-F947BC3DD · Oct 30
$2,178 AUD
$1,530 USD
View
9 more retailers have this diamond
Prices start from $226 AUDSave up to $1,952 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
1.69ct Radiant
$226 AUD