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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 $506 NZD
$284 USD
As of October 28, 2026
Save $1,930 NZD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,436 NZD 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 $506 to $2,436, a $1,930 spread on the same certified stone. Reve Diamonds lists it at $2,436. 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

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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 28
Current: $1,063 NZD|Low: $360 NZD|High: $2,282 NZD|Avg: $1,140 NZD|+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$506 NZD
Retailer 9$933 NZD
Retailer 5$935 NZD
Retailer 6$940 NZD
Retailer 7$1,043 NZD
Retailer 1$1,063 NZD
Retailer 3$1,362 NZD
Retailer 2$1,727 NZD
Retailer 4$2,266 NZD

31 data points across 9 retailers

16 retailers$506 NZD to $2,436 NZD

A
Retailer 1
-
$454 NZD
$255 USD
Price last confirmed 37 days ago
A
Retailer 2
-
$506 NZD
$284 USD
View
Final sale: no returns
A
Retailer 3
-
$525 NZD
$295 USD
View
Price last confirmed 37 days ago
A
Retailer 4
-
$556 NZD
$312 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
$933 NZD
$524 USD
View
B+
Retailer 6
-
$935 NZD
$525 USD
View
A
Retailer 7
-
$940 NZD
$528 USD
View
B+
Retailer 8
-
$1,043 NZD
$586 USD
View
B+
Retailer 9
-
$1,063 NZD
£470 GBP
View
B+
Retailer 10
-
$1,362 NZD
$765 USD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$1,385 NZD
£613 GBP
View
B
Retailer 12
-
$1,727 NZD
$970 USD
View
B
Retailer 13
-
$1,807 NZD
$1,015 USD
View
Price last confirmed 38 days ago
B
Retailer 14
-
$1,899 NZD
$1,067 USD
View
B
Retailer 15
-
$2,266 NZD
£1,002 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Reve Diamonds
AEEE51C91 · Oct 28
$2,436 NZD
$1,368 USD
View
15 more retailers have this diamond
Prices start from $506 NZDSave up to $1,930 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
1.68ct Round
$506 NZD