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Radiant|Lab Grown|IGI

3.00ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG512231587

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

Certificate IGI LG512231587

Diamond specifications and retailer prices

From $3,980 USD
As of October 31, 2026
Save $5,886 USD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $22,910 USD at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 3ct lab-grown radiant diamond

This 3ct lab-grown radiant sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG512231587 or 512231587. Listed at 15 retailers as of October 31, 2026, with a 148% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.00
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle30.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512231587
Dimensions9.04 × 7.04 × 5.03 mm
L/W Ratio1.28
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.04 mm7.04 mm3.00 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512231587
Side View
Table 66.0%Crown 44.2°Girdle: ThickPavilion 30.6°Culet: NoneDepth 71.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $22,910 USD|Low: $3,980 USD|High: $25,800 USD|Avg: $13,189 USD|-9.1%
Cape Diamonds
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
Retailer 16
November 1, 2026
Retailer 12$3,980 USD
Retailer 11$8,506 USD
Retailer 16$8,846 USD
Retailer 6$9,097 USD
Retailer 3$9,526 USD
Retailer 13$9,866 USD
Retailer 7$10,066 USD
Retailer 10$10,975 USD
Retailer 15$11,096 USD
Retailer 14$11,415 USD
Retailer 8$12,711 USD
Retailer 4$14,143 USD
Retailer 9$17,964 USD
Retailer 2$22,830 USD
Cape Diamonds$22,910 USD
Retailer 5$25,800 USD

21 data points across 16 retailers

15 retailers$3,980 USD to $9,866 USD

B
Cheapest Retailer
-
$3,980 USD
B
Retailer 2
-
$8,506 USD
View
B
Retailer 3
-
$8,846 USD
View
B
Retailer 4
-
$9,097 USD
View
B
Retailer 5
-
$9,526 USD
View
Final sale: no returns
B
Retailer 6
-
$9,866 USD
View
Retailer 7
-
$9,866 USD
View
Price last confirmed 17 days ago
Retailer 8
-
$10,975 USD
View
Price under review
Retailer 9
-
$11,096 USD
View
Price under review
Retailer 10
-
$11,415 USD
View
Price under review
Retailer 11
-
$14,143 USD
£11,136 GBP
View
Price under review
Most Expensive
Cape Diamonds
cert_512231587 · Oct 29
$22,910 USD
ZAR 370,113 ZAR
View
Price under review
11 more retailers have this diamond
Prices start from $3,980 USDSave up to $5,886 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.

B
3.00ct Radiant
$3,980 USD