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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 $540 AUD
$379 USD
As of October 30, 2026
Save $2,187 AUD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,783 AUD 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: $1,108 AUD|Low: $518 AUD|High: $2,745 AUD|Avg: $1,094 AUD|+2.8%
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
October 31, 2026
Retailer 9$540 AUD
Retailer 4$602 AUD
Retailer 13$604 AUD
Retailer 2$669 AUD
Retailer 10$669 AUD
Retailer 5$767 AUD
Retailer 7$883 AUD
Retailer 11$928 AUD
Retailer 1$1,108 AUD
Retailer 3$1,135 AUD
Retailer 8$1,875 AUD
Retailer 12$2,372 AUD
Retailer 6$2,726 AUD

44 data points across 13 retailers

17 retailers$540 AUD to $2,726 AUD

A
Cheapest Retailer
-
$540 AUD
$379 USD
A
Retailer 2
-
$602 AUD
$423 USD
View
Final sale: no returns
A
Retailer 3
-
$604 AUD
$424 USD
View
B+
Retailer 4
-
$669 AUD
$470 USD
View
B+
Retailer 5
-
$669 AUD
$470 USD
View
B+
Retailer 6
-
$767 AUD
$539 USD
View
B+
Retailer 7
-
$883 AUD
$620 USD
View
B+
Retailer 8
-
$928 AUD
$652 USD
View
B+
Retailer 9
-
$1,108 AUD
£613 GBP
View
B+
Retailer 10
-
$1,135 AUD
$797 USD
View
Retailer 11
-
$1,258 AUD
$884 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$1,875 AUD
$1,317 USD
View
B
Retailer 13
-
$1,891 AUD
CA$1,845 CAD
View
B
Retailer 14
-
$2,372 AUD
$1,666 USD
View
B
Retailer 15
-
$2,590 AUD
$1,819 USD
View
B
Retailer 16
-
$2,726 AUD
£1,508 GBP
View
Most Expensive
Do Amore Diamonds
27-D55CCD5C1 · Oct 31
$4,783 AUD
$3,360 USD
View
Price under review
16 more retailers have this diamond
Prices start from $540 AUDSave up to $2,187 AUD

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
$540 AUD