Radiant|Lab Grown|IGI

11.51ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG707521431

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

Certificate IGI LG707521431

Diamond specifications and retailer prices

From $2,429 USD
As of October 30, 2026
Save $15,401 USD (86%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $17,830 USD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 11.51ct lab-grown radiant diamond

This 11.51ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG707521431 or 707521431. Listed at 25 retailers as of October 30, 2026, with prices from $2,429 to $17,830, a $15,401 spread on the same certified stone. Do Amore Diamonds lists it at $17,830. 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

11.51
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle30.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG707521431
Dimensions16.44 × 10.77 × 6.99 mm
L/W Ratio1.53
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.44 mm10.77 mm11.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG707521431
Side View
Table 60.0%Crown 46.1°Girdle: ThickPavilion 30.1°Culet: NoneDepth 64.9%

Caratlytics Score

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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 30
Current: $4,167 USD|Low: $2,332 USD|High: $7,524 USD|Avg: $4,209 USD|-1.0%
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
November 2, 2026
Retailer 2$2,332 USD
Retailer 9$2,498 USD
Retailer 6$2,720 USD
Retailer 14$2,818 USD
Retailer 15$2,818 USD
Retailer 13$2,980 USD
Retailer 5$3,318 USD
Retailer 3$3,957 USD
Retailer 1$4,167 USD
Retailer 12$4,225 USD
Retailer 10$4,815 USD
Retailer 7$5,364 USD
Retailer 11$5,745 USD
Retailer 8$5,763 USD
Retailer 4$7,524 USD

43 data points across 15 retailers

25 retailers$2,429 USD to $17,830 USD

Retailer 1
-
$2,332 USD
Price last confirmed 30 days ago
A
Retailer 2
-
$2,429 USD
View
A
Retailer 3
-
$2,498 USD
£1,967 GBP
View
Retailer 4
-
$2,643 USD
View
Price last confirmed 35 days ago
A
Retailer 5
-
$2,720 USD
View
Final sale: no returns
A
Retailer 6
-
$2,818 USD
View
Retailer 7
-
$2,818 USD
View
Price last confirmed 29 days ago
Retailer 8
-
$2,818 USD
View
Price last confirmed 20 days ago
A
Retailer 9
-
$2,980 USD
View
A
Retailer 10
-
$3,318 USD
View
B+
Retailer 11
-
$3,957 USD
View
B+
Retailer 12
-
$4,167 USD
£3,281 GBP
View
B+
Retailer 13
-
$4,225 USD
View
Retailer 14
-
$4,276 USD
View
Price last confirmed 32 days ago
B+
Retailer 15
-
$4,276 USD
View
B+
Retailer 16
-
$4,815 USD
ZAR 77,794 ZAR
View
B+
Retailer 17
-
$5,364 USD
£4,224 GBP
View
Retailer 18
-
$5,745 USD
View
Price last confirmed 11 days ago
B+
Retailer 19
-
$5,763 USD
A$8,866 AUD
View
B+
Retailer 20
-
$6,164 USD
View
B
Retailer 21
-
$7,524 USD
View
B
Retailer 22
-
$7,823 USD
View
B
Retailer 23
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$10,845 USD
View
B
Retailer 24
-
$16,710 USD
View
Most Expensive
B
Do Amore Diamonds
23-707521431 · Nov 1
$17,830 USD
View
24 more retailers have this diamond
Prices start from $2,429 USDSave up to $15,401 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
11.51ct Radiant
$2,429 USD