CaratHunter
Plans
Round|Lab Grown|GIA

5.51ct E IF Round Lab Grown Diamond

EX • E/IF • GIA 3515142642

Certificate GIA 3515142642

Diamond specifications and retailer prices

From $29,281 NZD
$16,503 USD
As of October 29, 2026
Save $61,137 NZD (68%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $90,418 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 3515142642. Listed at 16 retailers as of October 29, 2026, with prices from $29,281 to $90,418, a $61,137 spread on the same certified stone. Taylor and Hart lists it at $90,418. 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
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 3515142642
Dimensions11.37 × 11.35 × 6.96 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
11.37 mm11.35 mm5.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3515142642
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.3%

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: $60,246 NZD|Low: $24,210 NZD|High: $235,961 NZD|Avg: $66,637 NZD|-5.5%
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
October 31, 2026
Retailer 8$25,843 NZD
Retailer 10$29,281 NZD
Retailer 13$29,984 NZD
Retailer 2$30,286 NZD
Retailer 5$32,250 NZD
Retailer 3$33,965 NZD
Retailer 11$35,138 NZD
Retailer 7$50,639 NZD
Retailer 6$57,862 NZD
Retailer 1$60,246 NZD
Retailer 9$87,233 NZD
Taylor and Hart$90,418 NZD
Retailer 12$131,174 NZD
Retailer 4$235,961 NZD

27 data points across 14 retailers

16 retailers$29,281 NZD to $90,418 NZD

Retailer 1
-
$25,843 NZD
$14,565 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$29,281 NZD
$16,503 USD
View
A
Retailer 3
-
$29,984 NZD
$16,899 USD
View
A
Retailer 4
-
$30,286 NZD
$17,069 USD
View
B+
Retailer 5
-
$32,250 NZD
$18,176 USD
View
B+
Retailer 6
-
$33,965 NZD
$19,143 USD
View
Retailer 7
-
$33,965 NZD
$19,143 USD
View
Price last confirmed 16 days ago
B+
Retailer 8
-
$35,138 NZD
$19,804 USD
View
B+
Retailer 9
-
$41,772 NZD
$23,543 USD
View
B+
Retailer 10
-
$50,639 NZD
$28,540 USD
View
B+
Retailer 11
-
$57,862 NZD
£25,678 GBP
View
B
Retailer 12
-
$60,246 NZD
€32,338 EUR
View
B
Retailer 13
-
$87,233 NZD
$49,165 USD
View
Most Expensive
B
Taylor and Hart
2OHVJ2C · Oct 31
$90,418 NZD
$50,960 USD
View
13 more retailers have this diamond
Prices start from $29,281 NZDSave up to $61,137 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 Round
$29,281 NZD