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Round|Lab Grown|IGI

1.23ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG671407594

Shape and cutting style on the report: Round brilliant

Certificate IGI LG671407594

Diamond specifications and retailer prices

From $178 USD
As of October 29, 2026
Save $1,532 USD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,710 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore 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 LG671407594 or 671407594. Listed at 22 retailers as of October 29, 2026, with prices from $178 to $1,710, a $1,532 spread on the same certified stone. Do Amore Diamonds lists it at $1,710. 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 angle33.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671407594
Dimensions6.92 × 6.87 × 4.23 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
6.92 mm6.87 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671407594
Side View
Table 56.0%Crown 33.3°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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: Oct 29
Current: $1,710 USD|Low: $171 USD|High: $1,710 USD|Avg: $569 USD
Do Amore Diamonds
Retailer 2
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Retailer 18
October 30, 2026
Retailer 16$178 USD
Retailer 6$199 USD
Retailer 17$207 USD
Retailer 15$221 USD
Retailer 18$221 USD
Retailer 10$299 USD
Retailer 5$417 USD
Retailer 12$419 USD
Retailer 2$446 USD
Retailer 3$515 USD
Retailer 8$525 USD
Retailer 14$596 USD
Retailer 7$628 USD
Retailer 13$751 USD
Retailer 4$785 USD
Retailer 9$1,126 USD
Retailer 11$1,148 USD
Do Amore Diamonds$1,710 USD

35 data points across 18 retailers

22 retailers$178 USD to $1,710 USD

A
Cheapest Retailer
-
$178 USD
A
Retailer 2
-
$199 USD
View
Final sale: no returns
A
Retailer 3
-
$207 USD
View
A
Retailer 4
-
$221 USD
View
A
Retailer 5
-
$221 USD
View
B+
Retailer 6
-
$299 USD
View
A
Retailer 7
-
$311 USD
View
Retailer 8
-
$346 USD
HK$2,700 HKD
View
Price last confirmed 56 days ago
Retailer 9
-
$417 USD
£328 GBP
View
Price last confirmed 13 days ago
A
Retailer 10
-
$419 USD
ZAR 6,776 ZAR
View
B+
Retailer 11
-
$446 USD
£351 GBP
View
B+
Retailer 12
-
$470 USD
View
Retailer 13
-
$515 USD
View
Price last confirmed 12 days ago
B+
Retailer 14
-
$525 USD
A$808 AUD
View
B+
Retailer 15
-
$596 USD
A$917 AUD
View
B+
Retailer 16
-
$628 USD
View
B
Retailer 17
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$751 USD
A$1,155 AUD
View
Retailer 18
-
$785 USD
View
Price last confirmed 12 days ago
B
Retailer 19
-
$958 USD
View
B
Retailer 20
-
$1,126 USD
View
B
Retailer 21
-
$1,148 USD
£904 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C84BC4ABA · Oct 29
$1,710 USD
View
21 more retailers have this diamond
Prices start from $178 USDSave up to $1,532 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
$178 USD