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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 $507 NZD
$286 USD
As of November 1, 2026
Save $2,271 NZD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,778 NZD 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 very-good cut grade and certified by IGI LG224661776 or 224661776. Listed at 15 retailers as of November 1, 2026, with prices from $507 to $2,778, a $2,271 spread on the same certified stone. MOH London lists it at $2,778. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,778 NZD|Low: $397 NZD|High: $2,794 NZD|Avg: $1,119 NZD|+27.6%
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 15$507 NZD
Retailer 7$539 NZD
Retailer 11$587 NZD
Retailer 5$628 NZD
Retailer 10$628 NZD
Retailer 16$662 NZD
Retailer 14$905 NZD
Retailer 13$1,033 NZD
Retailer 12$1,224 NZD
Retailer 9$1,233 NZD
Retailer 6$1,233 NZD
Retailer 2$1,235 NZD
Retailer 8$1,459 NZD
Retailer 4$2,230 NZD
Retailer 3$2,250 NZD
MOH London$2,778 NZD

18 data points across 16 retailers

15 retailers$507 NZD to $2,778 NZD

A
Cheapest Retailer
-
$507 NZD
$286 USD
B+
Retailer 2
-
$587 NZD
$331 USD
View
B+
Retailer 3
-
$628 NZD
$354 USD
View
B+
Retailer 4
-
$662 NZD
$373 USD
View
B+
Retailer 5
-
$905 NZD
$510 USD
View
B+
Retailer 6
-
$1,033 NZD
$582 USD
View
B+
Retailer 7
-
$1,033 NZD
$582 USD
View
B
Retailer 8
-
$1,224 NZD
$690 USD
View
B
Retailer 9
-
$1,233 NZD
£547 GBP
View
Retailer 10
-
$1,233 NZD
$695 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$1,235 NZD
£548 GBP
View
B
Retailer 12
-
$1,459 NZD
$822 USD
View
B
Retailer 13
-
$2,230 NZD
$1,257 USD
View
B
Retailer 14
-
$2,250 NZD
$1,268 USD
View
Most Expensive
C
MOH London
LG_224661776 · Nov 1
$2,778 NZD
£1,233 GBP
View
14 more retailers have this diamond
Prices start from $507 NZDSave up to $2,271 NZD

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
$507 NZD