CaratHunter
Plans
Round|Lab Grown|IGI

1.00ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG687537662

Shape and cutting style on the report: Round brilliant

Certificate IGI LG687537662

Diamond specifications and retailer prices

From $202 AUD
$142 USD
As of October 29, 2026
Save $1,235 AUD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,437 AUD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG687537662 or 687537662. Listed at 21 retailers as of October 29, 2026, with prices from $202 to $1,437, a $1,235 spread on the same certified stone. Reve Diamonds lists it at $1,437. 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

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687537662
Dimensions6.43 × 6.47 × 3.93 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.43 mm6.47 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687537662
Side View
Table 57.0%Crown 33.9°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 61.0%

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 29
Current: $430 AUD|Low: $159 AUD|High: $1,437 AUD|Avg: $623 AUD|+7.4%
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
Retailer 15
Reve Diamonds
October 30, 2026
Retailer 5$202 AUD
Retailer 9$225 AUD
Retailer 2$252 AUD
Retailer 14$252 AUD
Retailer 12$383 AUD
Retailer 1$430 AUD
Retailer 15$467 AUD
Retailer 8$495 AUD
Retailer 13$599 AUD
Retailer 7$655 AUD
Retailer 3$672 AUD
Retailer 11$683 AUD
Retailer 6$808 AUD
Retailer 4$887 AUD
Retailer 10$1,182 AUD
Reve Diamonds$1,437 AUD

42 data points across 16 retailers

21 retailers$202 AUD to $1,437 AUD

Retailer 1
-
$201 AUD
$141 USD
Price last confirmed 37 days ago
A
Retailer 2
-
$202 AUD
$142 USD
View
A
Retailer 3
-
$225 AUD
$158 USD
View
Final sale: no returns
A
Retailer 4
-
$235 AUD
$165 USD
View
Retailer 5
-
$246 AUD
$173 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$252 AUD
$177 USD
View
A
Retailer 7
-
$252 AUD
$177 USD
View
A
Retailer 8
-
$383 AUD
$269 USD
View
A
Retailer 9
-
$430 AUD
£238 GBP
View
B+
Retailer 10
-
$467 AUD
$328 USD
View
B+
Retailer 11
-
$495 AUD
€331 EUR
View
Retailer 12
-
$576 AUD
$405 USD
View
Price last confirmed 88 days ago
B+
Retailer 13
-
$599 AUD
$421 USD
View
B+
Retailer 14
-
$655 AUD
$460 USD
View
B+
Retailer 15
-
$672 AUD
$472 USD
View
B+
Retailer 16
-
$683 AUD
View
Retailer 17
-
$801 AUD
$563 USD
View
Price last confirmed 39 days ago
B
Retailer 18
-
$808 AUD
$568 USD
View
B
Retailer 19
-
$887 AUD
$623 USD
View
Retailer 20
-
$1,182 AUD
£654 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
Reve Diamonds
F7463E701 · Oct 30
$1,437 AUD
$1,010 USD
View
20 more retailers have this diamond
Prices start from $202 AUDSave up to $1,235 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
1.00ct Round
$202 AUD