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Marquise|Lab Grown|IGI

1.00ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG512204063

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG512204063

Diamond specifications and retailer prices

From $1,082 NZD
As of November 6, 2026
12 retailers carry this diamond
Most expensive: $3,539 NZD at NZ Jewellers · As of October 25, 2026
View at NZ Jewellers

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512204063 or 512204063. Listed at 12 retailers as of November 6, 2026. 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

1.00
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512204063
Dimensions10.91 × 5.16 × 2.94 mm
L/W Ratio2.11
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
10.91 mm5.16 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512204063
Side View
Table 56.5%Crown 38.8°Girdle: MED-STKPavilion 33.3°Culet: NoneDepth 57.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,093 NZD|Low: $1,043 NZD|High: $5,911 NZD|Avg: $2,379 NZD|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 27, 2026
Retailer 6$1,082 NZD
Retailer 5$1,086 NZD
Retailer 9$1,214 NZD
Retailer 7$1,346 NZD
Retailer 10$1,578 NZD
Retailer 8$2,064 NZD
Retailer 1$2,093 NZD
Retailer 4$3,339 NZD
Retailer 2$4,111 NZD
Retailer 3$5,848 NZD

35 data points across 10 retailers

12 retailers

B+
Cheapest Retailer
-
$1,082 NZD
Retailer 2
-
$1,086 NZD
View
Price last confirmed 14 days ago
Retailer 3
-
$1,216 NZD
View
Price last confirmed 13 days ago
Retailer 4
-
$1,346 NZD
View
Price last confirmed 12 days ago
Retailer 5
-
$1,346 NZD
View
Price last confirmed 21 days ago
Retailer 6
-
$1,578 NZD
View
Price last confirmed 10 days ago
Retailer 7
-
$2,064 NZD
View
Price last confirmed 11 days ago
Retailer 8
-
$2,093 NZD
View
Price last confirmed 10 days ago
Retailer 9
-
$3,339 NZD
View
Price under review
Most Expensive
NZ Jewellers
12352762-0446-4f29-94f9-5e4cd698031d · Oct 25
$3,539 NZD
$1,962 USD
View
Price under review
9 more retailers have this diamond
Prices start from $1,082 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.

B+
1.00ct Marquise
$1,082 NZD