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Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG792616784

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792616784

Diamond specifications and retailer prices

From $193 USD
As of November 1, 2026
Save $927 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,120 USD at MOH London · As of November 1, 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 top-tier cut grade and certified by IGI LG792616784 or 792616784. Listed at 19 retailers as of November 1, 2026, with prices from $193 to $1,120, a $927 spread on the same certified stone. MOH London lists it at $1,120. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792616784
Dimensions7.34 × 7.29 × 4.55 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
7.34 mm7.29 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792616784
Side View
Table 56.0%Crown 33.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

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 1
Current: $1,120 USD|Low: $189 USD|High: $1,157 USD|Avg: $549 USD|-1.8%
MOH London
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 5$193 USD
Retailer 15$216 USD
Retailer 14$224 USD
Retailer 9$240 USD
Retailer 6$241 USD
Retailer 16$419 USD
Retailer 2$436 USD
Retailer 12$453 USD
Retailer 13$572 USD
Retailer 11$620 USD
Retailer 7$715 USD
Retailer 10$771 USD
Retailer 3$779 USD
Retailer 4$824 USD
Retailer 8$860 USD
MOH London$1,120 USD

37 data points across 16 retailers

19 retailers$193 USD to $1,120 USD

Retailer 1
-
$193 USD
Price last confirmed 44 days ago
A
Retailer 2
-
$193 USD
View
A
Retailer 3
-
$216 USD
View
Final sale: no returns
A
Retailer 4
-
$224 USD
View
Retailer 5
-
$235 USD
View
Price last confirmed 43 days ago
A
Retailer 6
-
$240 USD
View
Retailer 7
-
$241 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$419 USD
View
A
Retailer 9
-
$436 USD
£343 GBP
View
A
Retailer 10
-
$453 USD
View
B+
Retailer 11
-
$572 USD
View
B+
Retailer 12
-
$620 USD
View
Retailer 13
-
$715 USD
View
Price last confirmed 11 days ago
Retailer 14
-
$766 USD
View
Price last confirmed 41 days ago
B
Retailer 15
-
$771 USD
View
B+
Retailer 16
-
$779 USD
SGD 1,053 SGD
View
B+
Retailer 17
-
$824 USD
View
B
Retailer 18
-
$860 USD
View
Most Expensive
B
MOH London
LG792616784 · Nov 1
$1,120 USD
£882 GBP
View
18 more retailers have this diamond
Prices start from $193 USDSave up to $927 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
$193 USD