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Radiant|Lab Grown|IGI

1.77ct G VS1 Radiant Lab Grown Diamond

GD • G/VS1 • IGI LG579391390

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG579391390

Diamond specifications and retailer prices

From $438 NZD
$247 USD
As of October 30, 2026
Save $3,767 NZD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,205 NZD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.77ct lab-grown radiant diamond

This 1.77ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG579391390 or 579391390. Listed at 19 retailers as of October 30, 2026, with prices from $438 to $4,205, a $3,767 spread on the same certified stone. Do Amore Diamonds lists it at $4,205. 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

1.77
Carat
G
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579391390
Dimensions8.75 × 5.96 × 4.00 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.75 mm5.96 mm1.77 ctG / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579391390
Side View
Table 65.0%Crown 43°Girdle: MediumPavilion 35.2°Culet: NoneDepth 67.1%

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: Oct 30
Current: $4,205 NZD|Low: $429 NZD|High: $4,205 NZD|Avg: $1,259 NZD|+28.1%
Do Amore Diamonds
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
Retailer 17
November 1, 2026
Retailer 3$438 NZD
Retailer 7$490 NZD
Retailer 17$509 NZD
Retailer 5$545 NZD
Retailer 13$545 NZD
Retailer 10$702 NZD
Retailer 4$711 NZD
Retailer 12$926 NZD
Retailer 16$1,032 NZD
Retailer 11$1,056 NZD
Retailer 6$1,139 NZD
Retailer 15$1,397 NZD
Retailer 14$1,930 NZD
Retailer 9$2,228 NZD
Retailer 8$2,353 NZD
Retailer 2$2,407 NZD
Do Amore Diamonds$4,205 NZD

29 data points across 17 retailers

19 retailers$438 NZD to $4,205 NZD

A
Cheapest Retailer
-
$438 NZD
$247 USD
B+
Retailer 2
-
$490 NZD
$276 USD
View
Final sale: no returns
A
Retailer 3
-
$509 NZD
$287 USD
View
Retailer 4
-
$545 NZD
$307 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$545 NZD
$307 USD
View
B+
Retailer 6
-
$702 NZD
£311 GBP
View
B
Retailer 7
-
$711 NZD
$401 USD
View
B+
Retailer 8
-
$926 NZD
€497 EUR
View
B+
Retailer 9
-
$1,032 NZD
ZAR 9,395 ZAR
View
B+
Retailer 10
-
$1,056 NZD
£469 GBP
View
B+
Retailer 11
-
$1,139 NZD
$642 USD
View
B+
Retailer 12
-
$1,397 NZD
A$1,211 AUD
View
B+
Retailer 13
-
$1,542 NZD
£684 GBP
View
B
Retailer 14
-
$1,930 NZD
$1,088 USD
View
Retailer 15
-
$2,106 NZD
$1,187 USD
View
Price last confirmed 84 days ago
B
Retailer 16
-
$2,228 NZD
$1,256 USD
View
B
Retailer 17
-
$2,353 NZD
£1,044 GBP
View
B
Retailer 18
-
$2,407 NZD
£1,068 GBP
View
Most Expensive
C
Do Amore Diamonds
27-2432C2A1F · Nov 1
$4,205 NZD
$2,370 USD
View
18 more retailers have this diamond
Prices start from $438 NZDSave up to $3,767 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
1.77ct Radiant
$438 NZD