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Round|Lab Grown|IGI

1.51ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG781634277

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781634277

Diamond specifications and retailer prices

From $206 USD
As of October 29, 2026
Save $833 USD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,320 USD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG781634277 or 781634277. Listed at 20 retailers as of October 29, 2026, with a 404% 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
F
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781634277
Dimensions7.29 × 7.34 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.29 mm7.34 mm1.51 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781634277
Side View
Table 59.0%Crown 35.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.0%

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: Oct 29
Current: $1,320 USD|Low: $206 USD|High: $1,320 USD|Avg: $580 USD
Brilliant Earth
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
Retailer 17
Retailer 18
November 1, 2026
Retailer 6$206 USD
Retailer 17$230 USD
Retailer 16$239 USD
Retailer 12$255 USD
Retailer 9$257 USD
Retailer 3$399 USD
Retailer 18$442 USD
Retailer 10$449 USD
Retailer 2$469 USD
Retailer 15$586 USD
Retailer 14$668 USD
Retailer 13$821 USD
Retailer 4$831 USD
Retailer 5$874 USD
Retailer 8$887 USD
Retailer 7$1,034 USD
Retailer 11$1,039 USD
Brilliant Earth$1,320 USD

23 data points across 18 retailers

20 retailers$206 USD to $1,039 USD

A
Cheapest Retailer
-
$206 USD
A
Retailer 2
-
$230 USD
View
Final sale: no returns
A
Retailer 3
-
$239 USD
View
A
Retailer 4
-
$255 USD
View
A
Retailer 5
-
$257 USD
View
A
Retailer 6
-
$399 USD
£314 GBP
View
B+
Retailer 7
-
$442 USD
View
A
Retailer 8
-
$449 USD
View
A
Retailer 9
-
$469 USD
£369 GBP
View
B+
Retailer 10
-
$538 USD
A$828 AUD
View
B+
Retailer 11
-
$586 USD
View
B+
Retailer 12
-
$668 USD
View
Retailer 13
-
$765 USD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
$821 USD
View
B+
Retailer 15
-
$831 USD
SGD 1,123 SGD
View
B+
Retailer 16
-
$874 USD
View
B+
Retailer 17
-
$887 USD
A$1,364 AUD
View
B
Retailer 18
-
$1,034 USD
£814 GBP
View
B
Retailer 19
-
$1,039 USD
View
Most Expensive
Brilliant Earth
21501943A · Oct 16
$1,320 USD
View
Price last confirmed 15 days ago
19 more retailers have this diamond
Prices start from $206 USDSave up to $833 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 Round
$206 USD