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Oval|Lab Grown|IGI

1.56ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG681578702

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG681578702

Diamond specifications and retailer prices

From $411 AUD
$289 USD
As of October 29, 2026
Save $3,774 AUD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $4,185 AUD at Brilliant Earth · As of October 30, 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 LG681578702 or 681578702. Listed at 25 retailers as of October 29, 2026, with prices from $411 to $4,185, a $3,774 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 angle37°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681578702
Dimensions9.19 × 6.55 × 4.14 mm
L/W Ratio1.40
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
9.19 mm6.55 mm1.56 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681578702
Side View
Table 60.0%Crown 37°Girdle: MED-STKPavilion 40.5°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: $4,185 AUD|Low: $394 AUD|High: $7,090 AUD|Avg: $1,532 AUD|-41.0%
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 3$411 AUD
Retailer 13$458 AUD
Retailer 24$477 AUD
Retailer 5$510 AUD
Retailer 14$601 AUD
Retailer 7$723 AUD
Retailer 22$726 AUD
Retailer 23$837 AUD
Retailer 21$876 AUD
Retailer 11$883 AUD
Retailer 18$901 AUD
Retailer 12$1,143 AUD
Retailer 20$1,185 AUD
Retailer 8$1,516 AUD
Retailer 6$1,566 AUD
Retailer 4$1,639 AUD
Retailer 15$1,708 AUD
Retailer 16$1,721 AUD
Retailer 10$1,960 AUD
Retailer 19$2,054 AUD
Retailer 9$2,102 AUD
Retailer 17$2,251 AUD
Retailer 2$2,738 AUD
Brilliant Earth$4,185 AUD

32 data points across 24 retailers

25 retailers$411 AUD to $4,185 AUD

A
Cheapest Retailer
-
$411 AUD
$289 USD
A
Retailer 2
-
$458 AUD
$322 USD
View
Final sale: no returns
A
Retailer 3
-
$477 AUD
$335 USD
View
A
Retailer 4
-
$510 AUD
$358 USD
View
A
Retailer 5
-
$601 AUD
HK$3,300 HKD
View
A
Retailer 6
-
$723 AUD
$508 USD
View
A
Retailer 7
-
$726 AUD
$510 USD
View
A
Retailer 8
-
$837 AUD
€560 EUR
View
A
Retailer 9
-
$876 AUD
ZAR 9,936 ZAR
View
A
Retailer 10
-
$883 AUD
$620 USD
View
A
Retailer 11
-
$901 AUD
£498 GBP
View
A
Retailer 12
-
$1,143 AUD
$803 USD
View
A
Retailer 13
-
$1,185 AUD
View
B+
Retailer 14
-
$1,516 AUD
$1,065 USD
View
B+
Retailer 15
-
$1,566 AUD
$1,100 USD
View
B+
Retailer 16
-
$1,639 AUD
$1,151 USD
View
B+
Retailer 17
-
$1,708 AUD
$1,200 USD
View
B+
Retailer 18
-
$1,721 AUD
SGD 1,634 SGD
View
B+
Retailer 19
-
$1,960 AUD
$1,377 USD
View
B+
Retailer 20
-
$2,054 AUD
£1,136 GBP
View
B+
Retailer 21
-
$2,102 AUD
$1,477 USD
View
B+
Retailer 22
-
$2,251 AUD
$1,581 USD
View
B+
Retailer 23
-
$2,738 AUD
View
Retailer 24
-
$3,459 AUD
$2,430 USD
View
Price last confirmed 33 days ago
Most Expensive
B
Brilliant Earth
13772889A · Oct 30
$4,185 AUD
$2,940 USD
View
24 more retailers have this diamond
Prices start from $411 AUDSave up to $3,774 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
$411 AUD