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Round|Lab Grown|IGI

1.23ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG794602614

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794602614

Diamond specifications and retailer prices

From $429 NZD
As of November 6, 2026
Save $563 NZD (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,816 NZD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.23ct lab-grown round diamond

This 1.23ct 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 LG794602614 or 794602614. Listed at 21 retailers as of November 2, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.23
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794602614
Dimensions6.84 × 6.91 × 4.16 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
6.84 mm6.91 mm1.23 ctF / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG794602614
Side View
Table 60.0%Crown 36.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.5%

Caratlytics Score

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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 6
Current: $552 NZD|Low: $278 NZD|High: $1,913 NZD|Avg: $797 NZD|-5.3%
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
Reve Diamonds
November 6, 2026
Retailer 4$285 NZD
Retailer 14$285 NZD
Retailer 6$332 NZD
Retailer 5$354 NZD
Retailer 3$429 NZD
Retailer 10$538 NZD
Retailer 1$552 NZD
Retailer 8$689 NZD
Retailer 13$776 NZD
Retailer 7$803 NZD
Retailer 12$909 NZD
Retailer 9$992 NZD
Retailer 2$1,117 NZD
Retailer 11$1,481 NZD
Reve Diamonds$1,816 NZD

37 data points across 15 retailers

21 retailers$429 NZD to $992 NZD

Retailer 1
-
$249 NZD
Price last confirmed 24 days ago
Retailer 2
-
$254 NZD
View
Price last confirmed 12 days ago
Retailer 3
-
$285 NZD
View
Price last confirmed 28 days ago
Retailer 4
-
$296 NZD
View
Price last confirmed 8 days ago
Retailer 5
-
$308 NZD
View
Price last confirmed 24 days ago
Retailer 6
-
$332 NZD
View
Price last confirmed 29 days ago
Retailer 7
-
$354 NZD
View
Price last confirmed 36 days ago
B+
Retailer 8
-
$429 NZD
View
Retailer 9
-
$538 NZD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$552 NZD
View
B+
Retailer 11
-
$689 NZD
View
B+
Retailer 12
-
$752 NZD
View
Retailer 13
-
$776 NZD
View
Price last confirmed 12 days ago
B+
Retailer 14
-
$803 NZD
View
Retailer 15
-
$909 NZD
View
Price last confirmed 12 days ago
Retailer 16
-
$990 NZD
View
Price last confirmed 24 days ago
B+
Retailer 17
-
$992 NZD
View
Retailer 18
-
$1,117 NZD
View
Price last confirmed 11 days ago
Retailer 19
-
$1,138 NZD
View
Price last confirmed 38 days ago
Retailer 20
-
$1,481 NZD
View
Price last confirmed 12 days ago
Most Expensive
Reve Diamonds
4FD743642 · Oct 25
$1,816 NZD
$1,007 USD
View
Price last confirmed 12 days ago
20 more retailers have this diamond
Prices start from $429 NZDSave up to $563 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
1.23ct Round
$429 NZD