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Oval|Lab Grown|IGI

1.56ct H SI2 Oval Lab Grown Diamond

ID • H/SI2 • IGI LG451057308

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057308

Diamond specifications and retailer prices

From $1,526 NZD
$860 USD
As of October 31, 2026
Save $6,755 NZD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,281 NZD at MOH London · As of November 1, 2026
View at MOH London

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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057308 or 451057308. Listed at 10 retailers as of October 31, 2026, with prices from $1,526 to $8,281, a $6,755 spread on the same certified stone. MOH London lists it at $8,281. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.56
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057308
Dimensions9.06 × 6.58 × 4.10 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.06 mm6.58 mm1.56 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451057308
Side View
Table 57.0%Crown 36°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 62.3%

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: Oct 31
Current: $8,281 NZD|Low: $1,526 NZD|High: $8,380 NZD|Avg: $3,846 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4$1,526 NZD
Retailer 2$2,221 NZD
Retailer 8$2,418 NZD
Retailer 9$2,486 NZD
Retailer 5$2,578 NZD
Retailer 11$3,575 NZD
Retailer 6$4,084 NZD
Retailer 10$4,805 NZD
Retailer 7$4,831 NZD
Retailer 3$5,770 NZD
MOH London$8,281 NZD

15 data points across 11 retailers

10 retailers$1,526 NZD to $8,281 NZD

A
Cheapest Retailer
-
$1,526 NZD
$860 USD
A
Retailer 2
-
$2,221 NZD
$1,252 USD
View
B+
Retailer 3
-
$2,418 NZD
$1,363 USD
View
B+
Retailer 4
-
$2,486 NZD
$1,401 USD
View
Final sale: no returns
Retailer 5
-
$2,578 NZD
$1,453 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$2,578 NZD
$1,453 USD
View
B
Retailer 7
-
$4,084 NZD
$2,302 USD
View
B
Retailer 8
-
$4,805 NZD
$2,708 USD
View
B
Retailer 9
-
$4,831 NZD
$2,723 USD
View
Most Expensive
B
MOH London
LG451057308 · Nov 1
$8,281 NZD
£3,675 GBP
View
9 more retailers have this diamond
Prices start from $1,526 NZDSave up to $6,755 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
$1,526 NZD