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1.53ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG781631509

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781631509

Diamond specifications and retailer prices

From $337 NZD
$190 USD
As of November 1, 2026
Save $1,614 NZD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,951 NZD at MOH London · As of November 1, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG781631509 or 781631509. Listed at 19 retailers as of November 1, 2026, with prices from $337 to $1,951, a $1,614 spread on the same certified stone. MOH London lists it at $1,951. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781631509
Dimensions7.50 × 7.47 × 4.45 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.50 mm7.47 mm1.53 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781631509
Side View
Table 62.0%Crown 32.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 59.5%

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: $1,951 NZD|Low: $332 NZD|High: $2,024 NZD|Avg: $954 NZD|-3.6%
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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 4$337 NZD
Retailer 14$374 NZD
Retailer 13$390 NZD
Retailer 9$417 NZD
Retailer 5$421 NZD
Retailer 15$733 NZD
Retailer 2$750 NZD
Retailer 6$820 NZD
Retailer 12$1,010 NZD
Retailer 11$1,072 NZD
Retailer 7$1,277 NZD
Retailer 10$1,341 NZD
Retailer 16$1,362 NZD
Retailer 3$1,437 NZD
Retailer 8$1,544 NZD
MOH London$1,951 NZD

33 data points across 16 retailers

19 retailers$337 NZD to $1,951 NZD

A
Cheapest Retailer
-
$337 NZD
$190 USD
Retailer 2
-
$337 NZD
$190 USD
View
Price last confirmed 44 days ago
A
Retailer 3
-
$374 NZD
$211 USD
View
Final sale: no returns
A
Retailer 4
-
$390 NZD
$220 USD
View
Retailer 5
-
$412 NZD
$232 USD
View
Price last confirmed 43 days ago
A
Retailer 6
-
$417 NZD
$235 USD
View
Retailer 7
-
$421 NZD
$237 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$733 NZD
$413 USD
View
A
Retailer 9
-
$750 NZD
£333 GBP
View
A
Retailer 10
-
$820 NZD
$462 USD
View
B+
Retailer 11
-
$1,010 NZD
$569 USD
View
B+
Retailer 12
-
$1,072 NZD
$604 USD
View
Retailer 13
-
$1,277 NZD
$720 USD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$1,341 NZD
$756 USD
View
Retailer 15
-
$1,341 NZD
$756 USD
View
Price last confirmed 41 days ago
B+
Retailer 16
-
$1,362 NZD
SGD 1,037 SGD
View
B+
Retailer 17
-
$1,437 NZD
$810 USD
View
B
Retailer 18
-
$1,544 NZD
$870 USD
View
Most Expensive
B
MOH London
LG781631509 · Nov 1
$1,951 NZD
£866 GBP
View
18 more retailers have this diamond
Prices start from $337 NZDSave up to $1,614 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
$337 NZD