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Round|Lab Grown|IGI

6.57ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG790606735

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790606735

Diamond specifications and retailer prices

From $16,811 NZD
$9,475 USD
As of October 29, 2026
Save $88,085 NZD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $104,897 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 6.57ct lab-grown round diamond

This 6.57ct lab-grown round sits in the over five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790606735 or 790606735. Listed at 12 retailers as of October 29, 2026, with prices from $16,811 to $104,897, a $88,085 spread on the same certified stone. Do Amore Diamonds lists it at $104,897. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.57
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790606735
Dimensions12.22 × 12.15 × 7.28 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
12.22 mm12.15 mm6.57 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790606735
Side View
Table 59.0%Crown 33°Girdle: MediumPavilion 40.8°Culet: NoneDepth 59.8%

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: $104,897 NZD|Low: $16,811 NZD|High: $110,003 NZD|Avg: $48,593 NZD|+2.7%
Do Amore Diamonds
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
October 30, 2026
Retailer 13$16,811 NZD
Retailer 10$17,484 NZD
Retailer 14$20,172 NZD
Retailer 15$20,688 NZD
Retailer 12$20,825 NZD
Retailer 9$20,830 NZD
Retailer 11$21,347 NZD
Retailer 8$33,992 NZD
Retailer 2$36,728 NZD
Retailer 7$45,342 NZD
Retailer 3$49,519 NZD
Retailer 4$52,867 NZD
Retailer 5$80,356 NZD
Do Amore Diamonds$104,897 NZD
Retailer 6$110,003 NZD

23 data points across 15 retailers

12 retailers$16,811 NZD to $104,897 NZD

A
Cheapest Retailer
-
$16,811 NZD
$9,475 USD
A
Retailer 2
-
$17,484 NZD
$9,854 USD
View
A
Retailer 3
-
$20,172 NZD
$11,369 USD
View
Retailer 4
-
$20,688 NZD
$11,660 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$20,825 NZD
$11,737 USD
View
A
Retailer 6
-
$20,830 NZD
$11,740 USD
View
A
Retailer 7
-
$21,347 NZD
$12,031 USD
View
A
Retailer 8
-
$33,992 NZD
£15,085 GBP
View
B+
Retailer 9
-
$36,728 NZD
$20,700 USD
View
B+
Retailer 10
-
$49,519 NZD
$27,909 USD
View
Retailer 11
-
$57,363 NZD
$32,330 USD
View
Price last confirmed 40 days ago
Most Expensive
B
Do Amore Diamonds
27-E58002C46 · Oct 31
$104,897 NZD
$59,120 USD
View
11 more retailers have this diamond
Prices start from $16,811 NZDSave up to $88,085 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
6.57ct Round
$16,811 NZD