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Round|Lab Grown|IGI

1.68ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG528206233

Shape and cutting style on the report: Round brilliant

Certificate IGI LG528206233

Diamond specifications and retailer prices

From $404 AUD
$284 USD
As of October 28, 2026
Save $1,543 AUD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,947 AUD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.68ct lab-grown round diamond

This 1.68ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG528206233 or 528206233. Listed at 16 retailers as of October 28, 2026, with prices from $404 to $1,947, a $1,543 spread on the same certified stone. Reve Diamonds lists it at $1,947. 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

1.68
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528206233
Dimensions7.64 × 7.59 × 4.71 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
7.64 mm7.59 mm1.68 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528206233
Side View
Table 56.0%Crown 36.4°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
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 28
Current: $850 AUD|Low: $288 AUD|High: $1,824 AUD|Avg: $911 AUD|+5.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 8$404 AUD
Retailer 9$746 AUD
Retailer 5$747 AUD
Retailer 6$752 AUD
Retailer 7$834 AUD
Retailer 1$850 AUD
Retailer 3$1,089 AUD
Retailer 2$1,381 AUD
Retailer 4$1,811 AUD

31 data points across 9 retailers

16 retailers$404 AUD to $1,947 AUD

Retailer 1
-
$363 AUD
$255 USD
Price last confirmed 37 days ago
A
Retailer 2
-
$404 AUD
$284 USD
View
Final sale: no returns
Retailer 3
-
$420 AUD
$295 USD
View
Price last confirmed 37 days ago
Retailer 4
-
$444 AUD
$312 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
$746 AUD
$524 USD
View
B+
Retailer 6
-
$747 AUD
$525 USD
View
A
Retailer 7
-
$752 AUD
$528 USD
View
B+
Retailer 8
-
$834 AUD
$586 USD
View
B+
Retailer 9
-
$850 AUD
£470 GBP
View
Retailer 10
-
$1,089 AUD
$765 USD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$1,107 AUD
£613 GBP
View
B
Retailer 12
-
$1,381 AUD
$970 USD
View
Retailer 13
-
$1,445 AUD
$1,015 USD
View
Price last confirmed 38 days ago
B
Retailer 14
-
$1,518 AUD
$1,067 USD
View
Retailer 15
-
$1,811 AUD
£1,002 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Reve Diamonds
AEEE51C91 · Oct 28
$1,947 AUD
$1,368 USD
View
15 more retailers have this diamond
Prices start from $404 AUDSave up to $1,543 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
1.68ct Round
$404 AUD