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Round|Lab Grown|IGI

1.68ct D IF Round Lab Grown Diamond

EX • D/IF • IGI LG800618698

Shape and cutting style on the report: Round brilliant

Certificate IGI LG800618698

Diamond specifications and retailer prices

From $662 NZD
$373 USD
As of October 29, 2026
Save $4,377 NZD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,039 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800618698 or 800618698. Listed at 22 retailers as of October 29, 2026, with prices from $662 to $5,039, a $4,377 spread on the same certified stone. Brilliant Earth lists it at $5,039. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.68
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800618698
Dimensions7.56 × 7.53 × 4.77 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.56 mm7.53 mm1.68 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800618698
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.2%

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 29
Current: $5,039 NZD|Low: $662 NZD|High: $5,731 NZD|Avg: $1,919 NZD|-12.1%
Brilliant Earth
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
Retailer 16
Retailer 17
November 1, 2026
Retailer 17$662 NZD
Retailer 9$740 NZD
Retailer 11$816 NZD
Retailer 5$820 NZD
Retailer 15$967 NZD
Retailer 4$1,097 NZD
Retailer 6$1,281 NZD
Retailer 14$1,410 NZD
Retailer 2$1,469 NZD
Retailer 12$1,904 NZD
Retailer 16$2,044 NZD
Retailer 7$2,090 NZD
Retailer 10$2,691 NZD
Retailer 8$3,097 NZD
Retailer 3$3,100 NZD
Retailer 13$3,222 NZD
Brilliant Earth$5,039 NZD

43 data points across 17 retailers

22 retailers$662 NZD to $5,039 NZD

Retailer 1
-
$662 NZD
$373 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$662 NZD
$373 USD
View
A
Retailer 3
-
$740 NZD
$417 USD
View
Final sale: no returns
Retailer 4
-
$768 NZD
$433 USD
View
Price last confirmed 39 days ago
Retailer 5
-
$809 NZD
$456 USD
View
Price last confirmed 37 days ago
A
Retailer 6
-
$816 NZD
$460 USD
View
A
Retailer 7
-
$820 NZD
$462 USD
View
A
Retailer 8
-
$967 NZD
$545 USD
View
A
Retailer 9
-
$1,097 NZD
$618 USD
View
A
Retailer 10
-
$1,281 NZD
$722 USD
View
A
Retailer 11
-
$1,410 NZD
ZAR 12,837 ZAR
View
A
Retailer 12
-
$1,469 NZD
£652 GBP
View
A
Retailer 13
-
$1,904 NZD
A$1,651 AUD
View
B+
Retailer 14
-
$2,044 NZD
$1,152 USD
View
B+
Retailer 15
-
$2,090 NZD
$1,178 USD
View
Retailer 16
-
$2,131 NZD
$1,201 USD
View
Price last confirmed 46 days ago
B+
Retailer 17
-
$2,637 NZD
$1,486 USD
View
B+
Retailer 18
-
$2,691 NZD
$1,517 USD
View
B+
Retailer 19
-
$3,097 NZD
$1,745 USD
View
B+
Retailer 20
-
$3,100 NZD
$1,747 USD
View
B+
Retailer 21
-
$3,222 NZD
£1,430 GBP
View
Most Expensive
B
Brilliant Earth
20477613A · Oct 31
$5,039 NZD
$2,840 USD
View
21 more retailers have this diamond
Prices start from $662 NZDSave up to $4,377 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
$662 NZD