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Round|Lab Grown|IGI

1.89ct F SI2 Round Lab Grown Diamond

VG • F/SI2 • IGI LG763668399

Shape and cutting style on the report: Round brilliant

Certificate IGI LG763668399

Diamond specifications and retailer prices

From $412 NZD
$232 USD
As of November 1, 2026
Save $1,913 NZD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,324 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.89ct lab-grown round diamond

This 1.89ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG763668399 or 763668399. Listed at 14 retailers as of October 31, 2026, with prices from $412 to $2,324, a $1,913 spread on the same certified stone. Brilliant Earth lists it at $2,324. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.89
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763668399
Dimensions7.79 × 7.74 × 4.99 mm
L/W Ratio1.01
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
7.79 mm7.74 mm1.89 ctF / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG763668399
Side View
Table 55.0%Crown 36.7°Girdle: MED-STKPavilion 41°Culet: NoneDepth 64.2%

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 1
Current: $2,324 NZD|Low: $396 NZD|High: $2,679 NZD|Avg: $1,160 NZD|-13.2%
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
November 2, 2026
Retailer 11$412 NZD
Retailer 12$461 NZD
Retailer 5$511 NZD
Retailer 2$848 NZD
Retailer 3$866 NZD
Retailer 6$881 NZD
Retailer 7$953 NZD
Retailer 13$985 NZD
Retailer 10$1,325 NZD
Retailer 9$1,544 NZD
Retailer 8$2,046 NZD
Retailer 4$2,154 NZD
Brilliant Earth$2,324 NZD

36 data points across 13 retailers

14 retailers$412 NZD to $2,324 NZD

A
Cheapest Retailer
-
$412 NZD
$232 USD
A
Retailer 2
-
$461 NZD
$260 USD
View
Final sale: no returns
Retailer 3
-
$511 NZD
$288 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$848 NZD
€455 EUR
View
B+
Retailer 5
-
$866 NZD
$488 USD
View
A
Retailer 6
-
$881 NZD
£391 GBP
View
B+
Retailer 7
-
$953 NZD
£423 GBP
View
B+
Retailer 8
-
$985 NZD
$555 USD
View
B+
Retailer 9
-
$1,325 NZD
$747 USD
View
Retailer 10
-
$1,524 NZD
$859 USD
View
Price last confirmed 48 days ago
B
Retailer 11
-
$1,544 NZD
$870 USD
View
B
Retailer 12
-
$2,046 NZD
£908 GBP
View
B
Retailer 13
-
$2,154 NZD
$1,214 USD
View
Most Expensive
B
Brilliant Earth
19891666A · Oct 31
$2,324 NZD
$1,310 USD
View
13 more retailers have this diamond
Prices start from $412 NZDSave up to $1,913 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
1.89ct Round
$412 NZD