CaratHunter
Plans
Heart|Natural|GIA

1.90ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 2436320728

Certificate GIA 2436320728

Diamond specifications and retailer prices

From $14,813 AUD
$10,381 USD
As of November 2, 2026
Save $5,038 AUD (25%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $19,851 AUD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 1.9ct natural heart diamond

This 1.9ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2436320728. Listed at 5 retailers as of November 2, 2026, with prices from $14,813 to $19,851, a $5,038 spread on the same certified stone. 77 Diamonds lists it at $19,851. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.90
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2436320728
Dimensions7.32 × 8.58 × 5.03 mm
L/W Ratio1.17
Top View
7.32 mm8.58 mm1.90 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2436320728
Side View
Table 59.0%CrownGirdlePavilionCuletDepth 58.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $19,851 AUD|Low: $14,669 AUD|High: $19,980 AUD|Avg: $17,668 AUD|+1.8%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$14,813 AUD
Retailer 2$18,393 AUD
77 Diamonds$19,851 AUD

32 data points across 3 retailers

5 retailers$14,813 AUD to $19,851 AUD

B+
Cheapest Retailer
-
$14,813 AUD
$10,381 USD
B
Retailer 2
-
$16,054 AUD
View
B
Retailer 3
-
$16,307 AUD
$11,428 USD
View
Retailer 4
-
$18,393 AUD
$12,890 USD
View
Price last confirmed 12 days ago
Most Expensive
B
77 Diamonds
HSZS2E7ZGYR · Nov 2
$19,851 AUD
£10,954 GBP
View
4 more retailers have this diamond
Prices start from $14,813 AUDSave up to $5,038 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.

B+
1.90ct Heart
$14,813 AUD