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Oval|Lab Grown|IGI

1.56ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG665445187

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG665445187

Diamond specifications and retailer prices

From $465 NZD
$262 USD
As of October 29, 2026
Save $4,452 NZD (91%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $4,917 NZD at Blue Nile · As of October 31, 2026
View at Blue Nile

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 LG665445187 or 665445187. Listed at 27 retailers as of October 29, 2026, with prices from $465 to $4,917, a $4,452 spread on the same certified stone. Blue Nile lists it at $4,917. 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 angle34.1°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665445187
Dimensions9.62 × 6.58 × 3.99 mm
L/W Ratio1.46
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
9.62 mm6.58 mm1.56 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665445187
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 60.6%

Caratlytics Score

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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: Oct 29
Current: $4,917 NZD|Low: $445 NZD|High: $5,802 NZD|Avg: $2,044 NZD
Blue Nile
Retailer 2
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October 31, 2026
Retailer 3$465 NZD
Retailer 27$538 NZD
Retailer 6$550 NZD
Retailer 5$575 NZD
Retailer 17$863 NZD
Retailer 8$901 NZD
Retailer 25$905 NZD
Retailer 26$1,043 NZD
Retailer 14$1,045 NZD
Retailer 24$1,091 NZD
Retailer 21$1,123 NZD
Retailer 15$1,255 NZD
Retailer 16$1,425 NZD
Retailer 9$1,471 NZD
Retailer 23$1,477 NZD
Retailer 7$1,767 NZD
Retailer 4$2,042 NZD
Retailer 11$2,264 NZD
Retailer 18$2,336 NZD
Retailer 10$2,462 NZD
Retailer 19$2,506 NZD
Retailer 22$2,560 NZD
Retailer 2$3,413 NZD
Retailer 12$4,116 NZD
Retailer 20$4,294 NZD
Retailer 13$4,755 NZD
Blue Nile$4,917 NZD

36 data points across 27 retailers

27 retailers$465 NZD to $4,917 NZD

A
Cheapest Retailer
-
$465 NZD
$262 USD
A
Retailer 2
-
$538 NZD
$303 USD
View
A
Retailer 3
-
$550 NZD
$310 USD
View
Final sale: no returns
A
Retailer 4
-
$575 NZD
$324 USD
View
A
Retailer 5
-
$863 NZD
HK$3,800 HKD
View
A
Retailer 6
-
$901 NZD
$508 USD
View
A
Retailer 7
-
$905 NZD
$510 USD
View
A
Retailer 8
-
$1,043 NZD
€560 EUR
View
A
Retailer 9
-
$1,045 NZD
$589 USD
View
A
Retailer 10
-
$1,091 NZD
ZAR 9,936 ZAR
View
A
Retailer 11
-
$1,123 NZD
£498 GBP
View
A
Retailer 12
-
$1,255 NZD
A$1,088 AUD
View
A
Retailer 13
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$1,425 NZD
$803 USD
View
A
Retailer 14
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$1,471 NZD
$829 USD
View
A
Retailer 15
-
$1,477 NZD
A$1,281 AUD
View
B+
Retailer 16
-
$1,767 NZD
$996 USD
View
B+
Retailer 17
-
$2,042 NZD
$1,151 USD
View
B+
Retailer 18
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$2,264 NZD
$1,276 USD
View
B+
Retailer 19
-
$2,336 NZD
$1,316 USD
View
B+
Retailer 20
-
$2,462 NZD
$1,387 USD
View
B+
Retailer 21
-
$2,506 NZD
SGD 1,909 SGD
View
B+
Retailer 22
-
$2,560 NZD
£1,136 GBP
View
B+
Retailer 23
-
$3,413 NZD
A$2,959 AUD
View
B
Retailer 24
-
$4,116 NZD
$2,320 USD
View
Retailer 25
-
$4,294 NZD
$2,420 USD
View
Price last confirmed 33 days ago
B
Retailer 26
-
$4,755 NZD
$2,680 USD
View
Most Expensive
B
Blue Nile
24056580 · Oct 31
$4,917 NZD
$2,771 USD
View
26 more retailers have this diamond
Prices start from $465 NZDSave up to $4,452 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
$465 NZD