Radiant|Lab Grown|IGI

1.51ct D VVS1 Radiant Lab Grown Diamond

EX • D/VVS1 • IGI LG696515605

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

Certificate IGI LG696515605

Diamond specifications and retailer prices

From $230 USD
As of November 4, 2026
Save $1,980 USD (90%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $2,718 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG696515605 or 696515605. Listed at 26 retailers as of November 4, 2026, with a 861% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG696515605
Dimensions8.45 × 5.75 × 3.85 mm
L/W Ratio1.47
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
8.45 mm5.75 mm1.51 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG696515605
Side View
Table 60.0%Crown 33.9°Girdle: Slightly ThickPavilion 35.1°Culet: NoneDepth 67.0%

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: Nov 4
Current: $593 USD|Low: $228 USD|High: $2,210 USD|Avg: $856 USD|-2.3%
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November 5, 2026
Retailer 4$230 USD
Retailer 13$256 USD
Retailer 23$267 USD
Retailer 8$285 USD
Retailer 14$285 USD
Retailer 12$331 USD
Retailer 21$421 USD
Retailer 16$422 USD
Retailer 3$520 USD
Retailer 6$537 USD
Retailer 19$543 USD
Retailer 1$593 USD
Retailer 18$736 USD
Retailer 7$919 USD
Retailer 5$1,011 USD
Retailer 11$1,159 USD
Retailer 17$1,181 USD
Retailer 15$1,215 USD
Retailer 24$1,219 USD
Retailer 20$1,261 USD
Retailer 10$1,287 USD
Retailer 2$1,490 USD
Retailer 22$1,680 USD
Retailer 9$2,210 USD

39 data points across 24 retailers

26 retailers$230 USD to $2,210 USD

A
Cheapest Retailer
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$230 USD
A
Retailer 2
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$256 USD
View
Final sale: no returns
A
Retailer 3
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$267 USD
View
Retailer 4
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$285 USD
View
Price last confirmed 11 days ago
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Retailer 5
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$285 USD
View
A
Retailer 6
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$331 USD
View
B+
Retailer 7
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$421 USD
View
A
Retailer 8
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$422 USD
View
A
Retailer 9
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$520 USD
View
A
Retailer 10
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$537 USD
View
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Retailer 11
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$543 USD
View
A
Retailer 12
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$593 USD
View
B+
Retailer 13
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$736 USD
View
B+
Retailer 14
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$919 USD
View
B+
Retailer 15
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$1,011 USD
View
B+
Retailer 16
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$1,121 USD
View
Retailer 17
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$1,159 USD
View
Price last confirmed 10 days ago
B
Retailer 18
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$1,181 USD
View
B
Retailer 19
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$1,215 USD
View
B
Retailer 20
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$1,219 USD
View
B+
Retailer 21
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$1,261 USD
View
B
Retailer 22
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$1,287 USD
View
Retailer 23
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$1,490 USD
View
Price last confirmed 8 days ago
B
Retailer 24
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$1,680 USD
View
B
Retailer 25
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$2,210 USD
View
Most Expensive
Queensmith
LG696515605 · Oct 27
$2,718 USD
£2,140 GBP
View
Price last confirmed 8 days ago
25 more retailers have this diamond
Prices start from $230 USDSave up to $1,980 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
1.51ct Radiant
$230 USD