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Heart|Lab Grown|GIA

1.70ct E SI1 Heart Lab Grown Diamond

VG • E/SI1 • GIA 2507785192

Certificate GIA 2507785192

Diamond specifications and retailer prices

From $672 NZD
$379 USD
As of October 30, 2026
Save $2,726 NZD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,962 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.7ct lab-grown heart diamond

This 1.7ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2507785192. Listed at 17 retailers as of October 29, 2026, with a 405% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2507785192
Dimensions7.60 × 8.39 × 4.72 mm
L/W Ratio1.10
Top View
7.60 mm8.39 mm1.70 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2507785192
Side View
Table 65.0%CrownGirdlePavilionCulet: NoneDepth 56.3%

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 30
Current: $1,378 NZD|Low: $534 NZD|High: $3,421 NZD|Avg: $1,466 NZD|+2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 7$751 NZD
Retailer 8$956 NZD
Retailer 3$1,100 NZD
Retailer 5$1,157 NZD
Retailer 1$1,378 NZD
Retailer 6$1,414 NZD
Retailer 9$1,568 NZD
Retailer 4$2,337 NZD
Retailer 2$3,398 NZD

41 data points across 9 retailers

17 retailers$672 NZD to $3,398 NZD

A
Cheapest Retailer
-
$672 NZD
$379 USD
A
Retailer 2
-
$751 NZD
$423 USD
View
Final sale: no returns
A
Retailer 3
-
$752 NZD
$424 USD
View
B+
Retailer 4
-
$834 NZD
$470 USD
View
B+
Retailer 5
-
$834 NZD
$470 USD
View
B+
Retailer 6
-
$956 NZD
$539 USD
View
B+
Retailer 7
-
$1,100 NZD
$620 USD
View
B+
Retailer 8
-
$1,157 NZD
$652 USD
View
B+
Retailer 9
-
$1,378 NZD
£612 GBP
View
B+
Retailer 10
-
$1,414 NZD
$797 USD
View
Retailer 11
-
$1,568 NZD
$884 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$2,337 NZD
$1,317 USD
View
B
Retailer 13
-
$2,357 NZD
CA$1,845 CAD
View
B
Retailer 14
-
$2,956 NZD
$1,666 USD
View
B
Retailer 15
-
$3,227 NZD
$1,819 USD
View
B
Retailer 16
-
$3,398 NZD
£1,508 GBP
View
Most Expensive
Do Amore Diamonds
27-D55CCD5C1 · Oct 31
$5,962 NZD
$3,360 USD
View
Price under review
16 more retailers have this diamond
Prices start from $672 NZDSave up to $2,726 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
1.70ct Heart
$672 NZD