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Oval|Lab Grown|IGI

1.78ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG836620561

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836620561

Diamond specifications and retailer prices

From $680 NZD
$383 USD
As of October 29, 2026
Save $7,314 NZD (91%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,993 NZD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.78ct lab-grown oval diamond

This 1.78ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836620561 or 836620561. Listed at 20 retailers as of October 28, 2026, with prices from $680 to $7,993, a $7,314 spread on the same certified stone. Rare Carat lists it at $7,993. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620561
Dimensions10.00 × 6.65 × 4.24 mm
L/W Ratio1.50
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
10.00 mm6.65 mm1.78 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620561
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.8%

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: $7,993 NZD|Low: $680 NZD|High: $8,082 NZD|Avg: $2,473 NZD|-1.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 14
Retailer 15
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Retailer 17
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Retailer 19
Retailer 20
October 30, 2026
Retailer 3$680 NZD
Retailer 18$761 NZD
Retailer 5$774 NZD
Retailer 8$843 NZD
Retailer 17$843 NZD
Retailer 15$1,109 NZD
Retailer 19$1,340 NZD
Retailer 14$1,447 NZD
Retailer 9$1,449 NZD
Retailer 13$1,524 NZD
Retailer 20$2,362 NZD
Retailer 4$2,473 NZD
Retailer 7$2,706 NZD
Retailer 6$2,774 NZD
Retailer 11$2,899 NZD
Retailer 2$3,181 NZD
Retailer 16$3,294 NZD
Retailer 10$3,941 NZD
Retailer 12$6,654 NZD
Rare Carat$7,993 NZD

29 data points across 20 retailers

20 retailers$680 NZD to $7,993 NZD

A
Cheapest Retailer
-
$680 NZD
$383 USD
A
Retailer 2
-
$761 NZD
$429 USD
View
A
Retailer 3
-
$774 NZD
$436 USD
View
Final sale: no returns
A
Retailer 4
-
$843 NZD
$475 USD
View
A
Retailer 5
-
$843 NZD
$475 USD
View
A
Retailer 6
-
$1,109 NZD
$625 USD
View
A
Retailer 7
-
$1,340 NZD
$755 USD
View
A
Retailer 8
-
$1,447 NZD
ZAR 13,174 ZAR
View
Retailer 9
-
$1,449 NZD
€778 EUR
View
Price last confirmed 7 days ago
A
Retailer 10
-
$1,524 NZD
£676 GBP
View
B+
Retailer 11
-
$2,362 NZD
$1,331 USD
View
B+
Retailer 12
-
$2,473 NZD
$1,394 USD
View
B+
Retailer 13
-
$2,706 NZD
$1,525 USD
View
B+
Retailer 14
-
$2,774 NZD
$1,563 USD
View
B+
Retailer 15
-
$2,899 NZD
SGD 2,208 SGD
View
B+
Retailer 16
-
$3,181 NZD
$1,793 USD
View
B+
Retailer 17
-
$3,294 NZD
£1,462 GBP
View
B+
Retailer 18
-
$3,941 NZD
$2,221 USD
View
B
Retailer 19
-
$6,654 NZD
$3,750 USD
View
Most Expensive
B
Rare Carat
PD-241524 · Oct 28
$7,993 NZD
$4,505 USD
View
19 more retailers have this diamond
Prices start from $680 NZDSave up to $7,314 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
1.78ct Oval
$680 NZD