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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 $408 NZD
$229 USD
As of October 26, 2026
Save $2,086 NZD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,494 NZD at Brilliant Earth · As of October 28, 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 26, 2026, with prices from $408 to $2,494, a $2,086 spread on the same certified stone. Brilliant Earth lists it at $2,494. 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 26
Current: $2,494 NZD|Low: $392 NZD|High: $2,494 NZD|Avg: $1,030 NZD
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
Retailer 15
October 29, 2026
Retailer 13$408 NZD
Retailer 6$456 NZD
Retailer 4$474 NZD
Retailer 7$506 NZD
Retailer 14$506 NZD
Retailer 2$566 NZD
Retailer 9$832 NZD
Retailer 15$859 NZD
Retailer 8$940 NZD
Retailer 5$1,105 NZD
Retailer 3$1,627 NZD
Retailer 12$1,632 NZD
Retailer 11$2,039 NZD
Retailer 10$2,040 NZD
Brilliant Earth$2,494 NZD

43 data points across 15 retailers

19 retailers$408 NZD to $2,494 NZD

A
Cheapest Retailer
-
$408 NZD
$229 USD
A
Retailer 2
-
$456 NZD
$256 USD
View
Final sale: no returns
A
Retailer 3
-
$474 NZD
$266 USD
View
A
Retailer 4
-
$506 NZD
$284 USD
View
A
Retailer 5
-
$506 NZD
$284 USD
View
A
Retailer 6
-
$566 NZD
£250 GBP
View
A
Retailer 7
-
$832 NZD
€445 EUR
View
B+
Retailer 8
-
$859 NZD
$482 USD
View
A
Retailer 9
-
$940 NZD
£415 GBP
View
B+
Retailer 10
-
$1,105 NZD
$620 USD
View
B+
Retailer 11
-
$1,112 NZD
$624 USD
View
B
Retailer 12
-
$1,616 NZD
SGD 1,226 SGD
View
B
Retailer 13
-
$1,627 NZD
$913 USD
View
B+
Retailer 14
-
$1,632 NZD
$916 USD
View
B
Retailer 15
-
$1,720 NZD
$965 USD
View
B
Retailer 16
-
$2,039 NZD
£901 GBP
View
B
Retailer 17
-
$2,040 NZD
$1,145 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$2,067 NZD
$1,160 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
16385956A · Oct 28
$2,494 NZD
$1,400 USD
View
18 more retailers have this diamond
Prices start from $408 NZDSave up to $2,086 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
1.72ct Oval
$408 NZD