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Round|Lab Grown|IGI

2.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG778667403

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778667403

Diamond specifications and retailer prices

From $493 NZD
As of November 5, 2026
Save $2,265 NZD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,757 NZD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 2.09ct lab-grown round diamond

This 2.09ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778667403 or 778667403. Listed at 16 retailers as of November 5, 2026, with prices from $493 to $2,757, a $2,265 spread on the same certified stone. Brilliant Earth lists it at $2,757. 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

2.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778667403
Dimensions8.28 × 8.23 × 4.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.28 mm8.23 mm2.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778667403
Side View
Table 59.0%Crown 33.5°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.4%

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 5
Current: $2,757 NZD|Low: $480 NZD|High: $2,917 NZD|Avg: $1,312 NZD|-5.5%
Brilliant Earth
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
November 6, 2026
Retailer 8$493 NZD
Retailer 16$573 NZD
Retailer 5$612 NZD
Retailer 6$612 NZD
Retailer 7$822 NZD
Retailer 3$889 NZD
Retailer 15$889 NZD
Retailer 2$1,002 NZD
Retailer 10$1,057 NZD
Retailer 17$1,167 NZD
Retailer 14$1,176 NZD
Retailer 4$1,251 NZD
Retailer 13$1,580 NZD
Retailer 9$1,966 NZD
Retailer 12$2,064 NZD
Retailer 11$2,444 NZD
Brilliant Earth$2,757 NZD

44 data points across 17 retailers

16 retailers$493 NZD to $2,757 NZD

A
Cheapest Retailer
-
$493 NZD
A
Retailer 2
-
$573 NZD
View
A
Retailer 3
-
$612 NZD
View
Retailer 4
-
$612 NZD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$822 NZD
View
A
Retailer 6
-
$889 NZD
View
A
Retailer 7
-
$1,002 NZD
View
A
Retailer 8
-
$1,057 NZD
View
A
Retailer 9
-
$1,167 NZD
View
A
Retailer 10
-
$1,176 NZD
View
A
Retailer 11
-
$1,251 NZD
View
B+
Retailer 12
-
$1,580 NZD
View
B+
Retailer 13
-
$1,966 NZD
View
B+
Retailer 14
-
$2,064 NZD
View
B
Retailer 15
-
$2,444 NZD
View
Most Expensive
B
Brilliant Earth
18492787A · Nov 5
$2,757 NZD
$1,550 USD
View
15 more retailers have this diamond
Prices start from $493 NZDSave up to $2,265 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
2.09ct Round
$493 NZD