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Oval|Lab Grown|IGI

1.56ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG720508172

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG720508172

Diamond specifications and retailer prices

From $485 AUD
$341 USD
As of November 1, 2026
Save $3,700 AUD (88%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $4,185 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.56ct lab-grown oval diamond

This 1.56ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG720508172 or 720508172. Listed at 30 retailers as of October 31, 2026, with prices from $485 to $4,185, a $3,700 spread on the same certified stone. Brilliant Earth lists it at $4,185. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720508172
Dimensions9.42 × 6.51 × 4.08 mm
L/W Ratio1.45
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
9.42 mm6.51 mm1.56 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720508172
Side View
Table 60.0%Crown 35.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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: Nov 1
Current: $4,185 AUD|Low: $458 AUD|High: $7,090 AUD|Avg: $1,600 AUD|-41.0%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 15$485 AUD
Retailer 10$601 AUD
Retailer 3$723 AUD
Retailer 19$733 AUD
Retailer 20$837 AUD
Retailer 18$876 AUD
Retailer 7$883 AUD
Retailer 2$894 AUD
Retailer 8$1,007 AUD
Retailer 9$1,143 AUD
Retailer 17$1,185 AUD
Retailer 4$1,516 AUD
Retailer 21$1,566 AUD
Retailer 11$1,708 AUD
Retailer 12$1,721 AUD
Retailer 6$1,960 AUD
Retailer 16$2,054 AUD
Retailer 5$2,102 AUD
Retailer 14$2,251 AUD
Retailer 13$2,738 AUD
Brilliant Earth$4,185 AUD

37 data points across 21 retailers

30 retailers$485 AUD to $4,185 AUD

Retailer 1
-
$437 AUD
$307 USD
Price last confirmed 33 days ago
Retailer 2
-
$477 AUD
$335 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$485 AUD
$341 USD
View
Final sale: no returns
Retailer 4
-
$507 AUD
$356 USD
View
Price last confirmed 37 days ago
A
Retailer 5
-
$510 AUD
$358 USD
View
Retailer 6
-
$510 AUD
$358 USD
View
Price last confirmed 22 days ago
Retailer 7
-
$510 AUD
$358 USD
View
Price last confirmed 30 days ago
Retailer 8
-
$535 AUD
$376 USD
View
Price last confirmed 33 days ago
A
Retailer 9
-
$601 AUD
HK$3,300 HKD
View
A
Retailer 10
-
$723 AUD
$508 USD
View
A
Retailer 11
-
$733 AUD
$515 USD
View
A
Retailer 12
-
$837 AUD
€560 EUR
View
A
Retailer 13
-
$876 AUD
ZAR 9,936 ZAR
View
A
Retailer 14
-
$883 AUD
$620 USD
View
A
Retailer 15
-
$894 AUD
£494 GBP
View
A
Retailer 16
-
$1,007 AUD
View
A
Retailer 17
-
$1,143 AUD
$803 USD
View
A
Retailer 18
-
$1,185 AUD
View
B+
Retailer 19
-
$1,516 AUD
$1,065 USD
View
B+
Retailer 20
-
$1,566 AUD
$1,100 USD
View
Retailer 21
-
$1,639 AUD
$1,151 USD
View
Price last confirmed 22 days ago
B+
Retailer 22
-
$1,708 AUD
$1,200 USD
View
B+
Retailer 23
-
$1,721 AUD
SGD 1,634 SGD
View
Retailer 24
-
$1,742 AUD
$1,224 USD
View
Price last confirmed 32 days ago
B+
Retailer 25
-
$1,960 AUD
$1,377 USD
View
B+
Retailer 26
-
$2,054 AUD
£1,136 GBP
View
B+
Retailer 27
-
$2,102 AUD
$1,477 USD
View
B+
Retailer 28
-
$2,251 AUD
$1,581 USD
View
B+
Retailer 29
-
$2,738 AUD
View
Most Expensive
B
Brilliant Earth
15240620A · Oct 31
$4,185 AUD
$2,940 USD
View
29 more retailers have this diamond
Prices start from $485 AUDSave up to $3,700 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
1.56ct Oval
$485 AUD