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Oval|Lab Grown|IGI

5.51ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG762545888

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG762545888

Diamond specifications and retailer prices

From $15,731 NZD
$8,866 USD
As of November 1, 2026
Save $45,540 NZD (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $61,271 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.51ct lab-grown oval diamond

This 5.51ct lab-grown oval sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG762545888 or 762545888. Listed at 14 retailers as of October 31, 2026, with prices from $15,731 to $61,271, a $45,540 spread on the same certified stone. Taylor and Hart lists it at $61,271. 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

5.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762545888
Dimensions14.34 × 10.09 × 6.07 mm
L/W Ratio1.42
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
14.34 mm10.09 mm5.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762545888
Side View
Table 63.0%Crown 32.7°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.2%

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: Nov 1
Current: $35,001 NZD|Low: $15,731 NZD|High: $80,354 NZD|Avg: $38,056 NZD|-25.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
November 1, 2026
Retailer 2$15,731 NZD
Retailer 10$20,484 NZD
Retailer 13$20,552 NZD
Retailer 4$21,485 NZD
Retailer 6$23,266 NZD
Retailer 3$27,821 NZD
Retailer 5$32,495 NZD
Retailer 8$32,523 NZD
Retailer 7$32,914 NZD
Retailer 1$35,001 NZD
Retailer 9$39,842 NZD
Retailer 12$54,114 NZD
Retailer 11$54,874 NZD
Taylor and Hart$61,271 NZD

37 data points across 14 retailers

14 retailers$15,731 NZD to $61,271 NZD

A
Cheapest Retailer
-
$15,731 NZD
$8,866 USD
A
Retailer 2
-
$20,484 NZD
$11,545 USD
View
A
Retailer 3
-
$20,552 NZD
$11,583 USD
View
A
Retailer 4
-
$21,485 NZD
HK$94,600 HKD
View
A
Retailer 5
-
$23,266 NZD
£10,325 GBP
View
A
Retailer 6
-
$27,821 NZD
$15,680 USD
View
B+
Retailer 7
-
$32,495 NZD
$18,314 USD
View
B+
Retailer 8
-
$32,523 NZD
$18,330 USD
View
B+
Retailer 9
-
$32,914 NZD
€17,667 EUR
View
B+
Retailer 10
-
$35,001 NZD
£15,533 GBP
View
B+
Retailer 11
-
$39,842 NZD
ZAR 362,762 ZAR
View
B+
Retailer 12
-
$54,114 NZD
$30,499 USD
View
B
Retailer 13
-
$54,874 NZD
$30,927 USD
View
Most Expensive
B
Taylor and Hart
8KPLXXC · Oct 31
$61,271 NZD
$34,533 USD
View
13 more retailers have this diamond
Prices start from $15,731 NZDSave up to $45,540 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
5.51ct Oval
$15,731 NZD