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1.03ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG811623859

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811623859

Diamond specifications and retailer prices

From $288 NZD
As of November 5, 2026
Save $1,617 NZD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,905 NZD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG811623859 or 811623859. Listed at 22 retailers as of November 5, 2026, with prices from $288 to $1,905, a $1,617 spread on the same certified stone. Reve Diamonds lists it at $1,905. 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

1.03
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811623859
Dimensions6.48 × 6.43 × 4.04 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.48 mm6.43 mm1.03 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811623859
Side View
Table 56.0%Crown 35.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.6%

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: $642 NZD|Low: $285 NZD|High: $1,905 NZD|Avg: $778 NZD|+2.3%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 7$288 NZD
Retailer 2$322 NZD
Retailer 15$333 NZD
Retailer 3$356 NZD
Retailer 5$356 NZD
Retailer 16$512 NZD
Retailer 12$569 NZD
Retailer 10$621 NZD
Retailer 1$642 NZD
Retailer 4$644 NZD
Retailer 17$788 NZD
Retailer 9$829 NZD
Retailer 13$936 NZD
Retailer 11$1,050 NZD
Retailer 8$1,146 NZD
Retailer 6$1,242 NZD
Retailer 14$1,663 NZD
Reve Diamonds$1,905 NZD

45 data points across 18 retailers

22 retailers$288 NZD to $1,905 NZD

Retailer 1
-
$285 NZD
Price last confirmed 45 days ago
A
Retailer 2
-
$288 NZD
View
A
Retailer 3
-
$322 NZD
View
Final sale: no returns
A
Retailer 4
-
$333 NZD
View
Retailer 5
-
$333 NZD
View
Price last confirmed 66 days ago
Retailer 6
-
$349 NZD
View
Price last confirmed 45 days ago
Retailer 7
-
$356 NZD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$356 NZD
View
A
Retailer 9
-
$512 NZD
View
A
Retailer 10
-
$569 NZD
View
B+
Retailer 11
-
$621 NZD
View
B+
Retailer 12
-
$642 NZD
View
B+
Retailer 13
-
$644 NZD
View
B+
Retailer 14
-
$788 NZD
View
B
Retailer 15
-
$829 NZD
View
B
Retailer 16
-
$936 NZD
View
B
Retailer 17
-
$1,050 NZD
View
Retailer 18
-
$1,137 NZD
View
Price last confirmed 46 days ago
B
Retailer 19
-
$1,146 NZD
View
B
Retailer 20
-
$1,242 NZD
View
B
Retailer 21
-
$1,663 NZD
View
Most Expensive
B
Reve Diamonds
DFF352A92 · Nov 6
$1,905 NZD
$1,071 USD
View
21 more retailers have this diamond
Prices start from $288 NZDSave up to $1,617 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
1.03ct Round
$288 NZD