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Round|Lab Grown|IGI

1.23ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG781618294

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781618294

Diamond specifications and retailer prices

From $211 USD
As of November 3, 2026
Save $1,923 USD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,134 USD at Queensmith · As of October 27, 2026
View at Queensmith

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 LG781618294 or 781618294. Listed at 22 retailers as of October 27, 2026, with prices from $211 to $2,134, a $1,923 spread on the same certified stone. Queensmith lists it at $2,134. 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 angle34.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781618294
Dimensions6.85 × 6.89 × 4.22 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
6.85 mm6.89 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781618294
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.5%

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 3
Current: $422 USD|Low: $182 USD|High: $1,113 USD|Avg: $428 USD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 12$190 USD
Retailer 11$211 USD
Retailer 2$235 USD
Retailer 4$235 USD
Retailer 3$318 USD
Retailer 9$399 USD
Retailer 10$406 USD
Retailer 1$422 USD
Retailer 8$435 USD
Retailer 7$573 USD
Retailer 6$609 USD
Retailer 5$1,099 USD

38 data points across 12 retailers

22 retailers$211 USD to $2,134 USD

Retailer 1
-
$190 USD
Price last confirmed 15 days ago
A
Retailer 2
-
$211 USD
View
Final sale: no returns
A
Retailer 3
-
$220 USD
View
A
Retailer 4
-
$235 USD
View
Retailer 5
-
$235 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$269 USD
HK$2,100 HKD
View
B+
Retailer 7
-
$318 USD
View
A
Retailer 8
-
$399 USD
£314 GBP
View
A
Retailer 9
-
$404 USD
View
A
Retailer 10
-
$406 USD
ZAR 6,556 ZAR
View
A
Retailer 11
-
$422 USD
£332 GBP
View
B+
Retailer 12
-
$435 USD
€414 EUR
View
B+
Retailer 13
-
$482 USD
View
B+
Retailer 14
-
$573 USD
A$882 AUD
View
B+
Retailer 15
-
$609 USD
View
B+
Retailer 16
-
$756 USD
View
B
Retailer 17
-
$767 USD
SGD 1,037 SGD
View
B
Retailer 18
-
$790 USD
View
B
Retailer 19
-
$810 USD
View
B
Retailer 20
-
$1,099 USD
£865 GBP
View
B
Retailer 21
-
$1,160 USD
View
Most Expensive
B
Queensmith
LG781618294 · Oct 27
$2,134 USD
£1,680 GBP
View
21 more retailers have this diamond
Prices start from $211 USDSave up to $1,923 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
$211 USD