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 $205 AUD
$144 USD
As of October 30, 2026
Save $1,241 AUD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,446 AUD 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 $205 to $1,446, a $1,241 spread on the same certified stone. Reve Diamonds lists it at $1,446. 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: $683 AUD|Low: $198 AUD|High: $1,206 AUD|Avg: $490 AUD|-25.0%
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 30, 2026
Retailer 13$205 AUD
Retailer 7$231 AUD
Retailer 4$238 AUD
Retailer 2$255 AUD
Retailer 5$255 AUD
Retailer 14$345 AUD
Retailer 11$363 AUD
Retailer 8$439 AUD
Retailer 10$481 AUD
Retailer 6$589 AUD
Retailer 12$645 AUD
Retailer 1$683 AUD
Retailer 3$819 AUD
Retailer 9$1,197 AUD

43 data points across 14 retailers

19 retailers$205 AUD to $1,446 AUD

A
Cheapest Retailer
-
$205 AUD
$144 USD
A
Retailer 2
-
$231 AUD
$162 USD
View
Final sale: no returns
A
Retailer 3
-
$238 AUD
$167 USD
View
A
Retailer 4
-
$255 AUD
$179 USD
View
A
Retailer 5
-
$255 AUD
$179 USD
View
A
Retailer 6
-
$292 AUD
HK$1,600 HKD
View
A
Retailer 7
-
$335 AUD
$235 USD
View
A
Retailer 8
-
$345 AUD
$242 USD
View
A
Retailer 9
-
$363 AUD
$255 USD
View
B+
Retailer 10
-
$439 AUD
£243 GBP
View
Retailer 11
-
$481 AUD
€322 EUR
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$589 AUD
$414 USD
View
B
Retailer 13
-
$645 AUD
$453 USD
View
B+
Retailer 14
-
$683 AUD
$480 USD
View
B
Retailer 15
-
$704 AUD
SGD 668 SGD
View
B
Retailer 16
-
$819 AUD
$575 USD
View
B
Retailer 17
-
$898 AUD
$631 USD
View
B
Retailer 18
-
$1,197 AUD
£662 GBP
View
Most Expensive
B
Reve Diamonds
CBC7C88FF · Oct 30
$1,446 AUD
$1,016 USD
View
18 more retailers have this diamond
Prices start from $205 AUDSave up to $1,241 AUD

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
$205 AUD