Round|Lab Grown|IGI

1.23ct I IF Round Lab Grown Diamond

ID • I/IF • IGI LG837612222

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837612222

Diamond specifications and retailer prices

From $293 AUD
$206 USD
As of October 29, 2026
Save $1,175 AUD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,730 AUD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG837612222 or 837612222. Listed at 15 retailers as of October 29, 2026, with a 401% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
I
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837612222
Dimensions6.90 × 6.96 × 4.22 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 Light Blue
Top View
6.90 mm6.96 mm1.23 ctI / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837612222
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,730 AUD|Low: $282 AUD|High: $1,730 AUD|Avg: $789 AUD
Rare Carat
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
October 30, 2026
Retailer 12$293 AUD
Retailer 15$329 AUD
Retailer 3$340 AUD
Retailer 11$364 AUD
Retailer 13$364 AUD
Retailer 4$505 AUD
Retailer 2$549 AUD
Retailer 9$616 AUD
Retailer 6$712 AUD
Retailer 14$1,170 AUD
Retailer 10$1,174 AUD
Retailer 7$1,246 AUD
Retailer 5$1,317 AUD
Retailer 8$1,468 AUD
Rare Carat$1,730 AUD

31 data points across 15 retailers

15 retailers$293 AUD to $1,468 AUD

A
Cheapest Retailer
-
$293 AUD
$206 USD
A
Retailer 2
-
$329 AUD
$231 USD
View
Final sale: no returns
A
Retailer 3
-
$340 AUD
$239 USD
View
A
Retailer 4
-
$364 AUD
$256 USD
View
A
Retailer 5
-
$364 AUD
$256 USD
View
B+
Retailer 6
-
$505 AUD
$355 USD
View
A
Retailer 7
-
$549 AUD
£304 GBP
View
Retailer 8
-
$616 AUD
ZAR 6,987 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$712 AUD
$500 USD
View
B
Retailer 10
-
$1,170 AUD
$822 USD
View
B
Retailer 11
-
$1,174 AUD
$825 USD
View
B
Retailer 12
-
$1,246 AUD
$876 USD
View
B
Retailer 13
-
$1,317 AUD
$925 USD
View
B
Retailer 14
-
$1,468 AUD
£812 GBP
View
Most Expensive
Rare Carat
VK9166_l_837612222 · Oct 21
$1,730 AUD
$1,215 USD
View
Price last confirmed 10 days ago
14 more retailers have this diamond
Prices start from $293 AUDSave up to $1,175 AUD

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
$293 AUD