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Marquise|Lab Grown|IGI

1.51ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG567351529

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG567351529

Diamond specifications and retailer prices

From $471 NZD
$265 USD
As of November 2, 2026
Save $1,872 NZD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,343 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG567351529 or 567351529. Listed at 18 retailers as of November 1, 2026, with prices from $471 to $2,343, a $1,872 spread on the same certified stone. MOH London lists it at $2,343. 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

1.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG567351529
Dimensions11.69 × 6.00 × 3.81 mm
L/W Ratio1.95
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
11.69 mm6.00 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG567351529
Side View
Table 58.0%Crown 36.4°Girdle: MediumPavilion 40.5°Culet: NoneDepth 63.5%

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: Nov 2
Current: $2,343 NZD|Low: $471 NZD|High: $3,253 NZD|Avg: $1,330 NZD|-27.9%
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
Retailer 17
Retailer 18
November 2, 2026
Retailer 15$471 NZD
Retailer 13$547 NZD
Retailer 3$553 NZD
Retailer 14$585 NZD
Retailer 5$682 NZD
Retailer 4$826 NZD
Retailer 11$871 NZD
Retailer 7$915 NZD
Retailer 12$972 NZD
Retailer 18$1,050 NZD
Retailer 2$1,110 NZD
Retailer 8$1,299 NZD
Retailer 17$1,795 NZD
Retailer 16$1,879 NZD
Retailer 9$1,974 NZD
Retailer 10$2,026 NZD
Retailer 6$2,328 NZD
MOH London$2,343 NZD

42 data points across 18 retailers

18 retailers$471 NZD to $2,343 NZD

A
Cheapest Retailer
-
$471 NZD
$265 USD
A
Retailer 2
-
$547 NZD
$308 USD
View
A
Retailer 3
-
$553 NZD
$311 USD
View
Final sale: no returns
A
Retailer 4
-
$585 NZD
$329 USD
View
A
Retailer 5
-
$682 NZD
HK$3,000 HKD
View
A
Retailer 6
-
$826 NZD
$465 USD
View
A
Retailer 7
-
$871 NZD
$490 USD
View
A
Retailer 8
-
$915 NZD
$515 USD
View
A
Retailer 9
-
$972 NZD
€521 EUR
View
B+
Retailer 10
-
$1,050 NZD
$591 USD
View
Retailer 11
-
$1,091 NZD
£484 GBP
View
Price last confirmed 18 days ago
B+
Retailer 12
-
$1,110 NZD
£492 GBP
View
Retailer 13
-
$1,299 NZD
$731 USD
View
Price last confirmed 9 days ago
Retailer 14
-
$1,795 NZD
$1,010 USD
View
Price last confirmed 7 days ago
B
Retailer 15
-
$1,879 NZD
$1,057 USD
View
B
Retailer 16
-
$1,974 NZD
SGD 1,501 SGD
View
B
Retailer 17
-
$2,328 NZD
$1,310 USD
View
Most Expensive
B
MOH London
LG567351529 · Nov 1
$2,343 NZD
£1,038 GBP
View
17 more retailers have this diamond
Prices start from $471 NZDSave up to $1,872 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
1.51ct Marquise
$471 NZD