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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 $605 NZD
$341 USD
As of November 1, 2026
Save $4,611 NZD (88%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $5,216 NZD 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 $605 to $5,216, a $4,611 spread on the same certified stone. Brilliant Earth lists it at $5,216. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,216 NZD|Low: $571 NZD|High: $8,836 NZD|Avg: $1,994 NZD|-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$605 NZD
Retailer 10$749 NZD
Retailer 3$901 NZD
Retailer 19$914 NZD
Retailer 20$1,043 NZD
Retailer 18$1,091 NZD
Retailer 7$1,100 NZD
Retailer 2$1,114 NZD
Retailer 8$1,255 NZD
Retailer 9$1,425 NZD
Retailer 17$1,477 NZD
Retailer 4$1,890 NZD
Retailer 21$1,952 NZD
Retailer 11$2,128 NZD
Retailer 12$2,145 NZD
Retailer 6$2,443 NZD
Retailer 16$2,560 NZD
Retailer 5$2,620 NZD
Retailer 14$2,805 NZD
Retailer 13$3,413 NZD
Brilliant Earth$5,216 NZD

37 data points across 21 retailers

30 retailers$605 NZD to $5,216 NZD

Retailer 1
-
$545 NZD
$307 USD
Price last confirmed 34 days ago
Retailer 2
-
$594 NZD
$335 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$605 NZD
$341 USD
View
Final sale: no returns
Retailer 4
-
$632 NZD
$356 USD
View
Price last confirmed 38 days ago
A
Retailer 5
-
$635 NZD
$358 USD
View
Retailer 6
-
$635 NZD
$358 USD
View
Price last confirmed 22 days ago
Retailer 7
-
$635 NZD
$358 USD
View
Price last confirmed 30 days ago
Retailer 8
-
$667 NZD
$376 USD
View
Price last confirmed 33 days ago
A
Retailer 9
-
$749 NZD
HK$3,300 HKD
View
A
Retailer 10
-
$901 NZD
$508 USD
View
A
Retailer 11
-
$914 NZD
$515 USD
View
A
Retailer 12
-
$1,043 NZD
€560 EUR
View
A
Retailer 13
-
$1,091 NZD
ZAR 9,936 ZAR
View
A
Retailer 14
-
$1,100 NZD
$620 USD
View
A
Retailer 15
-
$1,114 NZD
£494 GBP
View
A
Retailer 16
-
$1,255 NZD
A$1,088 AUD
View
A
Retailer 17
-
$1,425 NZD
$803 USD
View
A
Retailer 18
-
$1,477 NZD
A$1,281 AUD
View
B+
Retailer 19
-
$1,890 NZD
$1,065 USD
View
B+
Retailer 20
-
$1,952 NZD
$1,100 USD
View
Retailer 21
-
$2,042 NZD
$1,151 USD
View
Price last confirmed 23 days ago
B+
Retailer 22
-
$2,128 NZD
$1,200 USD
View
B+
Retailer 23
-
$2,145 NZD
SGD 1,634 SGD
View
Retailer 24
-
$2,172 NZD
$1,224 USD
View
Price last confirmed 32 days ago
B+
Retailer 25
-
$2,443 NZD
$1,377 USD
View
B+
Retailer 26
-
$2,560 NZD
£1,136 GBP
View
B+
Retailer 27
-
$2,620 NZD
$1,477 USD
View
B+
Retailer 28
-
$2,805 NZD
$1,581 USD
View
B+
Retailer 29
-
$3,413 NZD
A$2,959 AUD
View
Most Expensive
B
Brilliant Earth
15240620A · Oct 31
$5,216 NZD
$2,940 USD
View
29 more retailers have this diamond
Prices start from $605 NZDSave up to $4,611 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
1.56ct Oval
$605 NZD