Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

VG • G/SI1 • IGI LG224661776

Shape and cutting style on the report: Round brilliant

Certificate IGI LG224661776

Diamond specifications and retailer prices

From $286 USD
As of October 29, 2026
Save $1,289 USD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,575 USD at MOH London · As of October 29, 2026
View at MOH London

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG224661776 or 224661776. Listed at 15 retailers as of October 29, 2026, with prices from $286 to $1,575, a $1,289 spread on the same certified stone. MOH London lists it at $1,575. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG224661776
Dimensions7.24 × 7.17 × 4.68 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
The laboratory grown diamond described above is classified as Type IIa. Laserscribe on Girdle: "LAB GROWN LG 224661776"
Top View
7.24 mm7.17 mm1.51 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG224661776
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 64.9%

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: $1,575 USD|Low: $224 USD|High: $1,575 USD|Avg: $625 USD|+28.4%
MOH London
Retailer 2
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Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 16
October 31, 2026
Retailer 15$286 USD
Retailer 7$304 USD
Retailer 11$331 USD
Retailer 5$354 USD
Retailer 10$354 USD
Retailer 16$373 USD
Retailer 14$510 USD
Retailer 13$582 USD
Retailer 12$690 USD
Retailer 2$695 USD
Retailer 6$695 USD
Retailer 9$698 USD
Retailer 8$822 USD
Retailer 4$1,257 USD
Retailer 3$1,268 USD
MOH London$1,575 USD

19 data points across 16 retailers

15 retailers$286 USD to $1,575 USD

A
Cheapest Retailer
-
$286 USD
B+
Retailer 2
-
$331 USD
View
B+
Retailer 3
-
$354 USD
View
B+
Retailer 4
-
$373 USD
View
B+
Retailer 5
-
$510 USD
View
B+
Retailer 6
-
$582 USD
View
B+
Retailer 7
-
$582 USD
View
B
Retailer 8
-
$690 USD
View
B
Retailer 9
-
$695 USD
£547 GBP
View
Retailer 10
-
$695 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$698 USD
£550 GBP
View
B
Retailer 12
-
$822 USD
View
B
Retailer 13
-
$1,257 USD
View
B
Retailer 14
-
$1,268 USD
View
Most Expensive
C
MOH London
LG_224661776 · Oct 29
$1,575 USD
£1,240 GBP
View
14 more retailers have this diamond
Prices start from $286 USDSave up to $1,289 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
$286 USD