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Oval|Lab Grown|IGI

1.72ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG735550873

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG735550873

Diamond specifications and retailer prices

From $326 AUD
$229 USD
As of October 29, 2026
Save $1,667 AUD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,993 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.72ct lab-grown oval diamond

This 1.72ct lab-grown oval 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 LG735550873 or 735550873. Listed at 19 retailers as of October 29, 2026, with prices from $326 to $1,993, a $1,667 spread on the same certified stone. Brilliant Earth lists it at $1,993. 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

1.72
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735550873
Dimensions10.02 × 6.61 × 4.18 mm
L/W Ratio1.52
Girdle conditionFaceted
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
10.02 mm6.61 mm1.72 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735550873
Side View
Table 61.0%Crown 35.6°Girdle: MediumPavilion 41.2°Culet: NoneDepth 63.2%

Caratlytics Score

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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 29
Current: $1,993 AUD|Low: $313 AUD|High: $1,993 AUD|Avg: $863 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 12$326 AUD
Retailer 6$364 AUD
Retailer 4$379 AUD
Retailer 13$404 AUD
Retailer 2$451 AUD
Retailer 8$665 AUD
Retailer 14$686 AUD
Retailer 7$760 AUD
Retailer 5$883 AUD
Retailer 3$1,300 AUD
Retailer 11$1,304 AUD
Retailer 10$1,629 AUD
Retailer 9$1,630 AUD
Brilliant Earth$1,993 AUD

43 data points across 14 retailers

19 retailers$326 AUD to $1,993 AUD

A
Cheapest Retailer
-
$326 AUD
$229 USD
A
Retailer 2
-
$364 AUD
$256 USD
View
Final sale: no returns
A
Retailer 3
-
$379 AUD
$266 USD
View
A
Retailer 4
-
$404 AUD
$284 USD
View
A
Retailer 5
-
$404 AUD
$284 USD
View
A
Retailer 6
-
$451 AUD
£250 GBP
View
A
Retailer 7
-
$665 AUD
€445 EUR
View
B+
Retailer 8
-
$686 AUD
$482 USD
View
A
Retailer 9
-
$760 AUD
£420 GBP
View
B+
Retailer 10
-
$883 AUD
$620 USD
View
B+
Retailer 11
-
$888 AUD
$624 USD
View
B
Retailer 12
-
$1,292 AUD
SGD 1,226 SGD
View
B
Retailer 13
-
$1,300 AUD
$913 USD
View
B+
Retailer 14
-
$1,304 AUD
$916 USD
View
B
Retailer 15
-
$1,374 AUD
$965 USD
View
B
Retailer 16
-
$1,629 AUD
£901 GBP
View
Retailer 17
-
$1,630 AUD
$1,145 USD
View
Price last confirmed 11 days ago
Retailer 18
-
$1,651 AUD
$1,160 USD
View
Price last confirmed 16 days ago
Most Expensive
B
Brilliant Earth
16385956A · Oct 29
$1,993 AUD
$1,400 USD
View
18 more retailers have this diamond
Prices start from $326 AUDSave up to $1,667 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
1.72ct Oval
$326 AUD