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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 $341 USD
As of October 30, 2026
Save $2,599 USD (88%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $2,940 USD 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 30, 2026, with prices from $341 to $2,940, a $2,599 spread on the same certified stone. Brilliant Earth lists it at $2,940. 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
Color
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: Oct 30
Current: $2,940 USD|Low: $322 USD|High: $4,980 USD|Avg: $1,126 USD|-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
October 31, 2026
Retailer 13$341 USD
Retailer 10$422 USD
Retailer 3$508 USD
Retailer 19$515 USD
Retailer 20$588 USD
Retailer 18$615 USD
Retailer 7$620 USD
Retailer 15$633 USD
Retailer 8$707 USD
Retailer 9$803 USD
Retailer 17$833 USD
Retailer 4$1,065 USD
Retailer 21$1,100 USD
Retailer 11$1,200 USD
Retailer 12$1,209 USD
Retailer 6$1,377 USD
Retailer 16$1,443 USD
Retailer 5$1,477 USD
Retailer 14$1,581 USD
Retailer 2$1,923 USD
Brilliant Earth$2,940 USD

36 data points across 21 retailers

30 retailers$341 USD to $2,940 USD

Retailer 1
-
$307 USD
Price last confirmed 33 days ago
Retailer 2
-
$335 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$341 USD
View
Final sale: no returns
Retailer 4
-
$356 USD
View
Price last confirmed 36 days ago
A
Retailer 5
-
$358 USD
View
Retailer 6
-
$358 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$358 USD
View
Price last confirmed 29 days ago
Retailer 8
-
$376 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
$422 USD
HK$3,300 HKD
View
A
Retailer 10
-
$508 USD
View
A
Retailer 11
-
$515 USD
View
A
Retailer 12
-
$588 USD
€560 EUR
View
A
Retailer 13
-
$615 USD
ZAR 9,936 ZAR
View
A
Retailer 14
-
$620 USD
View
A
Retailer 15
-
$633 USD
£498 GBP
View
A
Retailer 16
-
$707 USD
A$1,088 AUD
View
A
Retailer 17
-
$803 USD
View
A
Retailer 18
-
$833 USD
A$1,281 AUD
View
B+
Retailer 19
-
$1,065 USD
View
B+
Retailer 20
-
$1,100 USD
View
Retailer 21
-
$1,151 USD
View
Price last confirmed 21 days ago
B+
Retailer 22
-
$1,200 USD
View
B+
Retailer 23
-
$1,209 USD
SGD 1,634 SGD
View
Retailer 24
-
$1,224 USD
View
Price last confirmed 31 days ago
B+
Retailer 25
-
$1,377 USD
View
B+
Retailer 26
-
$1,443 USD
£1,136 GBP
View
B+
Retailer 27
-
$1,477 USD
View
B+
Retailer 28
-
$1,581 USD
View
B+
Retailer 29
-
$1,923 USD
A$2,959 AUD
View
Most Expensive
B
Brilliant Earth
15240620A · Oct 31
$2,940 USD
View
29 more retailers have this diamond
Prices start from $341 USDSave up to $2,599 USD

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
$341 USD