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Round|Lab Grown|IGI

1.51ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG802608084

Shape and cutting style on the report: Round brilliant

Certificate IGI LG802608084

Diamond specifications and retailer prices

From $997 NZD
$562 USD
As of November 1, 2026
Save $2,587 NZD (72%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,584 NZD at Brilliant Earth · As of October 31, 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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG802608084 or 802608084. Listed at 7 retailers as of October 31, 2026, with prices from $997 to $3,584, a $2,587 spread on the same certified stone. Brilliant Earth lists it at $3,584. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG802608084
Dimensions7.45 × 7.41 × 4.49 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II Faint Blue
Top View
7.45 mm7.41 mm1.51 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG802608084
Side View
Table 60.0%Crown 33.8°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.4%

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: Nov 1
Current: $3,584 NZD|Low: $997 NZD|High: $4,223 NZD|Avg: $2,037 NZD|-15.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 4$997 NZD
Retailer 3$1,066 NZD
Retailer 6$1,133 NZD
Retailer 5$1,581 NZD
Retailer 2$2,429 NZD
Retailer 7$3,327 NZD
Brilliant Earth$3,584 NZD

22 data points across 7 retailers

7 retailers$997 NZD to $3,584 NZD

A
Cheapest Retailer
-
$997 NZD
$562 USD
A
Retailer 2
-
$1,066 NZD
$601 USD
View
Retailer 3
-
$1,133 NZD
€608 EUR
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$1,581 NZD
$891 USD
View
B+
Retailer 5
-
$2,429 NZD
£1,078 GBP
View
Retailer 6
-
$3,327 NZD
$1,875 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
20472566A · Oct 31
$3,584 NZD
$2,020 USD
View
6 more retailers have this diamond
Prices start from $997 NZDSave up to $2,587 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
$997 NZD