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Radiant|Lab Grown|IGI

3.12ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG628451780

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG628451780

Diamond specifications and retailer prices

From $4,182 USD
£3,293 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: $4,182 USD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG628451780 or 628451780. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.12
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628451780
Dimensions10.26 × 7.39 × 4.83 mm
L/W Ratio1.39
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
10.26 mm7.39 mm3.12 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628451780
Side View
Table 65.0%Crown 42.2°Girdle: MED-STKPavilion 34°Culet: NoneDepth 65.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $2,939 USD|Low: $665 USD|High: $7,090 USD|Avg: $2,632 USD|+17.3%
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July 1, 2026
Retailer 15$665 USD
Retailer 3$1,080 USD
Retailer 6$1,254 USD
Retailer 7$1,448 USD
Retailer 4$1,452 USD
Retailer 16$1,498 USD
Retailer 11$1,552 USD
Retailer 17$2,013 USD
Retailer 2$2,066 USD
Retailer 13$2,423 USD
Retailer 9$2,588 USD
Retailer 14$2,667 USD
Retailer 1$2,939 USD
Retailer 18$3,268 USD
Retailer 10$3,419 USD
Retailer 5$3,451 USD
Retailer 12$5,690 USD
Retailer 8$6,700 USD

61 data points across 18 retailers

1 retailer

B
Diamond Quarter
3.12VS1DLG8091EBN · Oct 31
$4,182 USD
£3,293 GBP
View

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.

B
3.12ct Radiant
$4,182 USD