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Round|Lab Grown|IGI

1.23ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG589304531

Shape and cutting style on the report: Round brilliant

Certificate IGI LG589304531

Diamond specifications and retailer prices

From $190 USD
As of October 30, 2026
Save $911 USD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,101 USD at Reve Diamonds · As of October 30, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG589304531 or 589304531. Listed at 22 retailers as of October 30, 2026, with prices from $190 to $1,101, a $911 spread on the same certified stone. Reve Diamonds lists it at $1,101. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG589304531
Dimensions6.81 × 6.85 × 4.24 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
6.81 mm6.85 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG589304531
Side View
Table 59.0%Crown 35°Girdle: MediumPavilion 41.3°Culet: NoneDepth 62.1%

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 30
Current: $198 USD|Low: $164 USD|High: $1,003 USD|Avg: $450 USD|-2.9%
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
October 30, 2026
Retailer 5$176 USD
Retailer 1$198 USD
Retailer 3$212 USD
Retailer 12$288 USD
Retailer 11$355 USD
Retailer 8$361 USD
Retailer 13$364 USD
Retailer 9$377 USD
Retailer 4$499 USD
Retailer 15$517 USD
Retailer 7$531 USD
Retailer 2$537 USD
Retailer 6$702 USD
Retailer 14$722 USD
Retailer 10$997 USD

33 data points across 15 retailers

22 retailers$190 USD to $1,101 USD

Retailer 1
-
$176 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$190 USD
View
Final sale: no returns
A
Retailer 3
-
$198 USD
View
A
Retailer 4
-
$212 USD
View
Retailer 5
-
$212 USD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$288 USD
View
A
Retailer 7
-
$355 USD
€338 EUR
View
A
Retailer 8
-
$361 USD
£284 GBP
View
A
Retailer 9
-
$364 USD
ZAR 5,882 ZAR
View
A
Retailer 10
-
$377 USD
£297 GBP
View
A
Retailer 11
-
$398 USD
View
A
Retailer 12
-
$417 USD
View
B+
Retailer 13
-
$499 USD
A$768 AUD
View
B+
Retailer 14
-
$517 USD
A$795 AUD
View
B+
Retailer 15
-
$531 USD
View
B+
Retailer 16
-
$537 USD
View
B
Retailer 17
-
$699 USD
View
Retailer 18
-
$702 USD
View
Price last confirmed 12 days ago
B
Retailer 19
-
$722 USD
A$1,111 AUD
View
B
Retailer 20
-
$736 USD
View
B
Retailer 21
-
$997 USD
£785 GBP
View
Most Expensive
B
Reve Diamonds
5A8031336 · Oct 30
$1,101 USD
View
21 more retailers have this diamond
Prices start from $190 USDSave up to $911 USD

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
$190 USD