CaratHunter
Plans
Radiant|Lab Grown|IGI

0.77ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG733508718

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

Certificate IGI LG733508718

Diamond specifications and retailer prices

From $255 NZD
$144 USD
As of October 30, 2026
Save $1,547 NZD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,802 NZD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.77ct lab-grown radiant diamond

This 0.77ct lab-grown radiant sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG733508718 or 733508718. Listed at 19 retailers as of October 30, 2026, with prices from $255 to $1,802, a $1,547 spread on the same certified stone. Reve Diamonds lists it at $1,802. 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

0.77
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733508718
Dimensions6.49 × 4.49 × 3.03 mm
L/W Ratio1.45
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
6.49 mm4.49 mm0.77 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733508718
Side View
Table 68.0%Crown 43.8°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 67.5%

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: Oct 30
Current: $286 NZD|Low: $247 NZD|High: $1,503 NZD|Avg: $610 NZD|-17.9%
Retailer 1
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
October 31, 2026
Retailer 13$255 NZD
Retailer 1$286 NZD
Retailer 4$296 NZD
Retailer 2$318 NZD
Retailer 5$318 NZD
Retailer 14$429 NZD
Retailer 11$452 NZD
Retailer 7$542 NZD
Retailer 10$600 NZD
Retailer 6$735 NZD
Retailer 12$804 NZD
Retailer 8$852 NZD
Retailer 3$1,020 NZD
Retailer 9$1,492 NZD

43 data points across 14 retailers

19 retailers$255 NZD to $1,802 NZD

A
Cheapest Retailer
-
$255 NZD
$144 USD
A
Retailer 2
-
$286 NZD
$161 USD
View
Final sale: no returns
A
Retailer 3
-
$296 NZD
$167 USD
View
A
Retailer 4
-
$318 NZD
$179 USD
View
A
Retailer 5
-
$318 NZD
$179 USD
View
A
Retailer 6
-
$363 NZD
HK$1,600 HKD
View
A
Retailer 7
-
$417 NZD
$235 USD
View
A
Retailer 8
-
$429 NZD
$242 USD
View
A
Retailer 9
-
$452 NZD
$255 USD
View
B+
Retailer 10
-
$542 NZD
£241 GBP
View
B+
Retailer 11
-
$600 NZD
€322 EUR
View
B+
Retailer 12
-
$735 NZD
$414 USD
View
B
Retailer 13
-
$804 NZD
$453 USD
View
B+
Retailer 14
-
$852 NZD
$480 USD
View
B
Retailer 15
-
$877 NZD
SGD 668 SGD
View
B
Retailer 16
-
$1,020 NZD
$575 USD
View
B
Retailer 17
-
$1,119 NZD
$631 USD
View
B
Retailer 18
-
$1,492 NZD
£662 GBP
View
Most Expensive
B
Reve Diamonds
CBC7C88FF · Oct 30
$1,802 NZD
$1,016 USD
View
18 more retailers have this diamond
Prices start from $255 NZDSave up to $1,547 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
0.77ct Radiant
$255 NZD