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Radiant|Lab Grown|IGI

1.77ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG547276808

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

Certificate IGI LG547276808

Diamond specifications and retailer prices

From $334 NZD
$188 USD
As of October 27, 2026
Save $2,865 NZD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,199 NZD at Do Amore Diamonds · As of October 29, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG547276808 or 547276808. Listed at 10 retailers as of October 27, 2026, with prices from $334 to $3,199, a $2,865 spread on the same certified stone. Do Amore Diamonds lists it at $3,199. 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

1.77
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG547276808
Dimensions8.47 × 5.93 × 4.01 mm
L/W Ratio1.43
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
8.47 mm5.93 mm1.77 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG547276808
Side View
Table 63.5%Crown 42.9°Girdle: MediumPavilionCulet: NoneDepth 67.6%

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 27
Current: $3,199 NZD|Low: $332 NZD|High: $3,359 NZD|Avg: $1,391 NZD|-3.7%
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
October 29, 2026
Retailer 12$334 NZD
Retailer 9$387 NZD
Retailer 15$387 NZD
Retailer 8$588 NZD
Retailer 14$725 NZD
Retailer 7$781 NZD
Retailer 6$979 NZD
Retailer 10$1,333 NZD
Retailer 4$1,445 NZD
Retailer 13$1,466 NZD
Retailer 3$1,479 NZD
Retailer 11$1,768 NZD
Retailer 2$1,840 NZD
Do Amore Diamonds$3,199 NZD
Retailer 5$3,359 NZD

24 data points across 15 retailers

10 retailers$334 NZD to $3,199 NZD

A
Cheapest Retailer
-
$334 NZD
$188 USD
A
Retailer 2
-
$387 NZD
$218 USD
View
A
Retailer 3
-
$387 NZD
$218 USD
View
Final sale: no returns
A
Retailer 4
-
$588 NZD
£260 GBP
View
B+
Retailer 5
-
$725 NZD
$408 USD
View
Retailer 6
-
$1,333 NZD
$750 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$1,466 NZD
$825 USD
View
Retailer 8
-
$1,768 NZD
$995 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$1,840 NZD
£815 GBP
View
Most Expensive
B
Do Amore Diamonds
27-8A74780A2 · Oct 29
$3,199 NZD
$1,800 USD
View
9 more retailers have this diamond
Prices start from $334 NZDSave up to $2,865 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
$334 NZD