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1.53ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG500150528

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500150528

Diamond specifications and retailer prices

From $1,512 NZD
As of November 5, 2026
Save $6,666 NZD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,178 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.53ct lab-grown round diamond

This 1.53ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500150528 or 500150528. Listed at 12 retailers as of November 5, 2026, with prices from $1,512 to $8,178, a $6,666 spread on the same certified stone. MOH London lists it at $8,178. 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

1.53
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500150528
Dimensions7.40 × 7.36 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.40 mm7.36 mm1.53 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500150528
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.9%

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 5
Current: $8,178 NZD|Low: $1,512 NZD|High: $8,309 NZD|Avg: $3,963 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 6$1,512 NZD
Retailer 8$2,474 NZD
Retailer 11$2,693 NZD
Retailer 13$2,772 NZD
Retailer 3$2,871 NZD
Retailer 9$2,871 NZD
Retailer 7$3,175 NZD
Retailer 5$3,922 NZD
Retailer 10$4,533 NZD
Retailer 2$5,164 NZD
Retailer 4$5,210 NZD
Retailer 12$5,381 NZD
MOH London$8,178 NZD

44 data points across 13 retailers

12 retailers$1,512 NZD to $8,178 NZD

A
Cheapest Retailer
-
$1,512 NZD
B+
Retailer 2
-
$2,474 NZD
View
B+
Retailer 3
-
$2,693 NZD
View
B+
Retailer 4
-
$2,772 NZD
View
Final sale: no returns
Retailer 5
-
$2,871 NZD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$2,871 NZD
View
B+
Retailer 7
-
$3,175 NZD
View
B
Retailer 8
-
$4,533 NZD
View
B
Retailer 9
-
$5,164 NZD
View
B
Retailer 10
-
$5,210 NZD
View
B
Retailer 11
-
$5,381 NZD
View
Most Expensive
B
MOH London
LG500150528 · Nov 5
$8,178 NZD
£3,620 GBP
View
11 more retailers have this diamond
Prices start from $1,512 NZDSave up to $6,666 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
1.53ct Round
$1,512 NZD