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Round|Lab Grown|IGI

1.51ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG440014219

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440014219

Diamond specifications and retailer prices

From $1,200 AUD
As of November 5, 2026
Save $6,093 AUD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,293 AUD at MOH London · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440014219 or 440014219. Listed at 11 retailers as of November 5, 2026, with prices from $1,200 to $7,293, a $6,093 spread on the same certified stone. MOH London lists it at $7,293. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440014219
Dimensions7.34 × 7.36 × 4.51 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.34 mm7.36 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440014219
Side View
Table 57.0%Crown 35°GirdlePavilion 40.2°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $7,293 AUD|Low: $1,200 AUD|High: $7,411 AUD|Avg: $3,126 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 2$1,200 AUD
Retailer 5$1,963 AUD
Retailer 8$2,134 AUD
Retailer 10$2,196 AUD
Retailer 6$2,276 AUD
Retailer 11$2,276 AUD
Retailer 12$2,521 AUD
Retailer 4$3,114 AUD
Retailer 7$3,596 AUD
Retailer 3$4,243 AUD
Retailer 9$4,267 AUD
MOH London$7,293 AUD

14 data points across 12 retailers

11 retailers$1,200 AUD to $7,293 AUD

A
Cheapest Retailer
-
$1,200 AUD
B+
Retailer 2
-
$1,963 AUD
View
B+
Retailer 3
-
$2,134 AUD
View
B+
Retailer 4
-
$2,196 AUD
View
Final sale: no returns
B+
Retailer 5
-
$2,276 AUD
View
Retailer 6
-
$2,276 AUD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$2,521 AUD
View
B
Retailer 8
-
$3,596 AUD
View
B
Retailer 9
-
$4,243 AUD
View
B
Retailer 10
-
$4,267 AUD
View
Most Expensive
B
MOH London
LG440014219 · Nov 5
$7,293 AUD
£4,020 GBP
View
10 more retailers have this diamond
Prices start from $1,200 AUDSave up to $6,093 AUD

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
$1,200 AUD