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1.15ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG757504778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG757504778

Diamond specifications and retailer prices

From $656 NZD
As of November 6, 2026
Save $1,101 NZD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,758 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.15ct lab-grown round diamond

This 1.15ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG757504778 or 757504778. Listed at 7 retailers as of November 2, 2026, with prices from $656 to $1,758, a $1,101 spread on the same certified stone. MOH London lists it at $1,758. 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

1.15
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757504778
Dimensions6.74 × 6.72 × 4.16 mm
L/W Ratio1.00
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
6.74 mm6.72 mm1.15 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757504778
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

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: Nov 6
Current: $1,758 NZD|Low: $619 NZD|High: $1,760 NZD|Avg: $868 NZD|+1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$640 NZD
Retailer 2$656 NZD
Retailer 6$671 NZD
Retailer 4$765 NZD
Retailer 3$783 NZD
Retailer 5$815 NZD
MOH London$1,758 NZD

44 data points across 7 retailers

7 retailers$656 NZD to $1,758 NZD

Retailer 1
-
$640 NZD
Price last confirmed 8 days ago
A
Retailer 2
-
$656 NZD
View
A
Retailer 3
-
$671 NZD
View
B+
Retailer 4
-
$765 NZD
View
B+
Retailer 5
-
$783 NZD
View
B+
Retailer 6
-
$815 NZD
View
Most Expensive
B
MOH London
LG757504778 · Nov 2
$1,758 NZD
£778 GBP
View
6 more retailers have this diamond
Prices start from $656 NZDSave up to $1,101 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
1.15ct Round
$656 NZD