CaratHunter
Plans
Princess|Lab Grown|IGI

1.78ct G SI2 Princess Lab Grown Diamond

GD • G/SI2 • IGI LG494167484

Shape and cutting style on the report: Princess cut

Certificate IGI LG494167484

Diamond specifications and retailer prices

From $1,597 NZD
As of November 6, 2026
Save $555 NZD (26%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,152 NZD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 1.78ct lab-grown princess diamond

This 1.78ct lab-grown princess sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG494167484 or 494167484. Listed at 10 retailers as of November 6, 2026, with prices from $1,597 to $2,152, a $555 spread on the same certified stone. The Diamond Guys lists it at $2,152. 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

1.78
Carat
G
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG494167484
Dimensions6.65 × 6.54 × 4.64 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.65 mm6.54 mm1.78 ctG / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494167484
Side View
Table 72.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 70.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,752 NZD|Low: $382 NZD|High: $2,152 NZD|Avg: $1,468 NZD|-5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
The Diamond Guys
November 4, 2026
Retailer 4$382 NZD
Retailer 6$813 NZD
Retailer 3$966 NZD
Retailer 2$1,532 NZD
Retailer 7$1,597 NZD
Retailer 1$1,752 NZD
Retailer 5$2,126 NZD
The Diamond Guys$2,152 NZD

17 data points across 8 retailers

10 retailers$1,597 NZD to $2,152 NZD

Retailer 1
-
$382 NZD
Price last confirmed 26 days ago
Retailer 2
-
$475 NZD
View
Price last confirmed 29 days ago
Retailer 3
-
$475 NZD
View
Price last confirmed 25 days ago
Retailer 4
-
$813 NZD
View
Price last confirmed 23 days ago
Retailer 5
-
$966 NZD
View
Price last confirmed 22 days ago
B
Retailer 6
-
$1,597 NZD
View
Retailer 7
-
$1,685 NZD
View
Price last confirmed 30 days ago
B
Retailer 8
-
$1,752 NZD
View
Retailer 9
-
$2,126 NZD
View
Price last confirmed 26 days ago
Most Expensive
B
The Diamond Guys
1980423639 · Nov 6
$2,152 NZD
$1,210 USD
View
9 more retailers have this diamond
Prices start from $1,597 NZDSave up to $555 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.

B
1.78ct Princess
$1,597 NZD